Simply multiply the length by the width by the depth or use our simple volume calculator. Found inside – Page 83Spheres , pyramids and cones Sphere r Volume of a sphere = Farr3 On the non - calculator paper you may be asked to ... cm a ) Volume = { x = x 62 x 8 = 96 cm3 = 301.6 cm3 b ) Total surface area = curved surface area + area of circle ... `A=pir^2`, where `r` is the radius of the circle or correspondingly: `A=pi/4d^2`, where `d` is the diameter of the circle. If you know the diameter of the cylinder, you can find the radius by dividing the diameter by two, or just use our circle diameter calculator. This geometry solver can be used to calculate perimeter, area, surface area, etc. The diameter of a circle can be calculated according to the given parameters. The volume of a rectangular box is the amount of space occupied by the object. The Volume of Torus formula is defined by the formula V = 4 × (π^2) × R × r^2 where R is the major radius of the torus r is the minor radius of the torus is calculated using volume = 2*(pi^2)* Major Radius *(Minor Radius ^2).To calculate Volume of Torus, you need Major Radius (r Major) & Minor Radius (r Minor).With our tool, you need to enter the respective value for Major Radius & Minor . If written instead in terms of the radius, the diameter is very simple; it's just twice as long: d = 2 r. d = 2r d = 2r. 1 cubic metre = 1000 litres. Circular π r 2 x Depth Circular areas are also easy to calculate. Himanshi Sharma has verified this Calculator and 500+ more calculators! It is a set of all points in a plane . The volume of a sphere is given by the formula 4 3 ⋅ π ⋅ r 3 where r is the radius of the circle. Volume of a sphere. Found inside – Page 331Volume Volume of cone = 1 3 (πr2)h = 1 3 (π32) 3 6 = 18π Volume of cylinder = πr2h = π32 × 9 = 81π Volume of half ... m 2 Calculate the volume of this capsule (the upper part of shape b and the lower parts of shape c are semi-circles). The volume of a cylinder is 198 cm 3. Circular π r 2 x Depth Circular areas are also easy to calculate. To do piping size calculation, follow these steps: Find the inner diameter and length of the pipe, in inches or millimeters. 2 The Radius is the distance between the centre of a circle and its edge. Cylinder Area Calculator. Area of a circle = π × Radius 2. Python Program to find Volume & Surface Area of a Cylinder - This Python program allows the user to enter the value of a radius and height. Quarter Cylinder Calculator The volume, area and surface to volume ratio of a quarter cylinder. Copy. Solution. The Arc of a Circle Calculator can also be used to: Find out the radius of a circle, knowing only the diameter. π is roughly equal to 3.14159265359. π = 3.14159265359. This involved attempting to construct a square with the same area as a given circle within a finite number of steps, only using a compass and straightedge. Found inside – Page 46 MEASUREMENT Length, mass and volume Include: • conversion of a measurement from a smaller unit to a larger unit in ... 5 MEASUREMENT Area and circumference of circle Include: • use of formulae to calculate the area and circumference ... Solution : Area = πr 2. Estimate the diameter of a circle when its radius is known. Circular Slab Concrete Calculator. Surface area of a sphere = 4 × π × Radius 2. Sphere Volume Calculator. Formulas. The volume calculator supports numeric but also literal expressions. Found inside – Page 270Calculate the total volume and surface area of the object shown on the right. Use the calculator value of ... Give your answers correct to the nearest m2 or mm2 (the upper part of shape b is a semi-circle). a b 40 mm 3 m 15mm Calculate ... Here is how the Volume of a Circular Cylinder calculation can be explained with given input values -> 3769.911 = pi*(10)^2*12. How to calculate Volume of a Circular Cylinder using this online calculator? How to calculate Volume of a Circular Cylinder? To calculate the volume of a cylinder, you must know its height and the radius of the circular base (the distance from the center of the circle to its edge) at the top and bottom. Found inside – Page 7Circumference and area of a circle, page 347 Know and use the formula for the volume of a cuboid; calculate volumes and surface areas of cuboids and shapes made from cuboids. Calculate the surface area and volume of right prisms. . The volume of a circular cylinder can be defined as the quantity of three-dimensional space enclosed by a circular cylinder is calculated using. volume = a3, Enter the length, width and depth of your pond to figure out how much water it holds. It is also a transcendental number, meaning that it is not the root of any non-zero, polynomial that has rational coefficients. Note: for simplicity, the operations above were rounded to 2 . If the diameter of the circle `d` and the length of the circumference `C` are known, the area can be calculated (without the figure `pi`) using the formula: `A = Cd/4` Information About the Circle Area Calculator Estimate the diameter of a circle when its radius is known. The pi (π) is approximately equal to 3.14159265359 and represents the ratio of any circle's circumference to its diameter, or the ratio of a circle's area to the . Height is the distance between the lowest and highest points of a person standing upright. To use this online calculator for Volume of a Circular Cylinder, enter Radius (r) & Height (h) and hit the calculate button. Volume formulas. Found inside – Page 71Calculate. a. Ship's. Cargo. Have students experiment with different cargoes to understand the problems facing boat ... V = Ax h The volume of a cylinder is calculated by multiplying the area of its base (circle) times its height. Multiply by π, or 3.14 for an estimation. Note that all the circles inside the ring have an even diameter. The formulas to calculate the volume of different types of section of a sphere, Volume of a spherical cap = (1/3)πh 2 (3R - h), where, height h of the spherical cap, and radius R of the sphere from which cap was cut. Calculation Formulas Square or Rectangle (Length x Width x Depth) The area of a square or rectangular garden is easy to calculate. Found inside – Page 8Recall from analytic geometry the equation of a circle centered at any position ( a , b ) from the origin is у > 2 l V2ry – y2 + • Alexandria , Va . A simplified and convenient method for measuring the volume of liquid in tanks and for ... Found inside – Page ixCalculate volume ; Litres and millilitres Cubic centimetre blocks , rectangular boxes , isometric dot paper , metre ... scissors , glue 2D Shapes pp 76-79 The circle Drawing circles Types of triangles Triangles and scale Large scale ... Multiply the radius with itself, getting the square, in our case 256 cm². [6] 2021/06/13 14:11 30 years old level / Self-employed people / Very / Purpose of use Find the length of an arc, using the chord length and arc angle. Found inside – Page 105In the nineteenth century , the combined efforts of Chernac , Burckhardt , Crelle , Glaisher , and the lightning calculator Dase led to a table covering all numbers up to 10,000,000 and published in ten volumes . All of these values are related through the mathematical constant π, or pi, which is the ratio of a circle's circumference to its diameter, and is approximately 3.14159. π is an irrational number meaning that it cannot be expressed exactly as a fraction (though it is often approximated as 22/7) and its decimal representation never ends or has a permanent repeating pattern. If the diameter is 6 cm, calculate the height. Notes on the Annulus Calculator. Calculate volume of geometric solids. r1 = Outside radius and r2 = Inside radius. Important Syntax Tips: Always use the * between quantities that are multiplied; parentheses alone will not work. Essentially, the diameter is twice the radius, as the largest distance between two points on a circle has to be a line segment through the center of a circle. So Max should order 0.126 cubic meters of concrete to fill each hole. Multiply the area of a circle by the height of the cylinder, we get the volume of the cylinder. How to calculate Volume of a Circular Cylinder using this online calculator? 6. The Arc of a Circle Calculator can also be used to: Find out the radius of a circle, knowing only the diameter. Radius (r) cm. Area and circumference of circle calculator uses radius length of a circle, and calculates the perimeter and area of the circle. Cylinder Volume = pi x radius squared x height. Easy to use online geometry calculators and solvers for various topics in geometry such as calculate area, volume, distance, points of intersection. 7. If you know the circumference it is a bit harder, but not too bad: r = c / 2 π. r=c/2\pi r = c/2π. h = height of cylinder. If you don't know the radius, then you can use a ruler to measure the widest part of the circle and then divide it by 2. You now have the volume of the cylinder in the same units you used to measure the parts. After typing the required input you will see the results in the form of a circle area equivalent to the radius you have entered. Volume of a cylinder formula. Calculator online on how to calculate volume of capsule, cone, conical frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, triangular prism and sphere. Cube = , where s is the length of the side. The volume formula for a sphere is 4/3 x π x (diameter / 2) 3, where (diameter / 2) is the radius of the sphere (d = 2 x r), so another way to write it is 4/3 x π x radius 3.Visual on the figure below: Same as a circle, you only need one measurement of the sphere: its diameter or its radius. Volume of a Circular Cylinder is the amount of space it occupies. Simply multiply the length by the width by the depth or use our simple volume calculator. Using this calculator, we will understand methods . Solution : Volume = 3.1416 x 5 2 x 10. Write it down. Calculator. Alternatively, you could substitute the radius of the quadrant directly into the formula A = ¼ πr². Simply multiply 3.1415 (π) by the radius, by the radius again, by the depth or use our simple volume . Do not use the ^ for powers; use the pow (x,y) function instead. = 314 / 36. Sphere: Just like a circle, which geometrically is a two-dimensional object, a sphere is defined mathematically as the set of points that are all at the same distance r from a given point, but in three-dimensional space. volume = length × width × height, Points at a fixed distance from a given straight line axis. In this formula, Volume uses Radius & Height. The radius is the distance from the center of the sphere to the edge and it is always the same, no matter which points on the sphere's edge you measure from. surface area calculator . Found inside – Page 295B 5 cm C 16 cm 16 cm Not to scale 20 cm C 7.1 cm 20 cm 22 cm A 10 cm D a Calculate the area of the circle . ... CF = 3.5 m Angle ABC = 90 ° a Calculate the area of the triangular end ABC . b Calculate the volume of the prism . If the diameter of the circle `d` and the length of the circumference `C` are known, the area can be calculated (without the figure `pi`) using the formula: `A = Cd/4` Information About the Circle Area Calculator Substitute the height, h, and surface area into the equation, surface area = πr 2 h : 2πrh + 2πr 2. The formula is V = πr 2 h, where V is the Volume, r is the radius of the circular base, h is the height, and π is the constant pi. To find the radius from the diameter, you only have to divide by two: r = d / 2. r=d/2 r = d/2. Found inside – Page 396 MEASUREMENT Length, mass and volume Include: • conversion of a measurement from a smaller unit to a larger unit in ... 5 MEASUREMENT Area and circumference of circle Include: • use of formulae to calculate the area and circumference ... Here is your handy tool i.e., Areavolumecalculator.com which helps you find the area, volume, and perimeter of plane shapes. = 3.14 x (64) Area = 201.1429 in². Make sure the volume and height are in the same units (e.g. Something is not working or missing? Interestingly, the proof by Ferdinand von Lindemann in 1880 that π is transcendental finally put an end to the millennia-old quest that began with ancient geometers of "squaring the circle." 3.14 = 6.28 (*) (*) 6.283 meters exactly or limited to de precision of this calculator (13 decimal places). Found inside – Page 500The revolving disk of the calculator is graduated in degrees centigrade corresponding to the graduations on the thermometer . The graduations on the outer circle of the calculator represent percentages of alcohol by volume . The formula for working out the circumference of a circle is: Circumference of circle = π x Diameter of circle. Found inside – Page 331We will double the volume of the top half of the torus (using cylindrical shells). ... The first integral evaluates to #Tr” (half the area of a circle of radius r). The second one evaluates ... 3 3 3 r CALCULATOR/COMPUTER EXERCISES 85. The formula for the volume of cylinder is: cylinder volume = π * radius² * height. While a circle, symbolically, represents many different things to many different groups of people including concepts such as eternity, timelessness, and totality, a circle by definition is a simple closed shape. This result is the circle's radius of 15.9 centimeters. Volume equals: cm3. A Rectangular box is a geometrical figure bounded by six quadrilateral faces. It is twice the length of the radius of a circle, i.e., Diameter = 2 × Radius. Volume = 0.126 m 2 × 1 m = 0.126 m 3. volume = length × width × height, A cone is a three-dimensional shape that tapers smoothly from its typically circular base to a common point called the apex (or vertex) V=πr2(h/3), A sphere is the three-dimensional counterpart of the two-dimensional circle. Found inside – Page 46 MEASUREMENT Length, mass and volume Include: • conversion of a measurement from a smaller unit to a larger unit in ... 5 MEASUREMENT Area and circumference of circle Include: • use of formulae to calculate the area and circumference ... Square root the result. The value of π. The calculator is able to calculate online the volume of a sphere, in other words, to calculate the volume of a ball . 1 D1 = Outside diameter and D2 = Inside diameter. The calculator can be used to find the area of a circle from any sized radius. Please provide any value below to calculate the remaining values of a circle. Using these values, it will calculate the Volume of a Cylinder, Surface Area of a Cylinder, Lateral Surface Area of a Cylinder, Top Or Bottom Surface Area of a Cylinder Found insideVolume ( V ) of a cube BASIC RULE : V = side3 V = 53 Example Calculate the volume of a cube with sides of 6 cm . ... Year 7 Circumference circle = 20r or Ccircle = hd Year 7 Parts of a circle : radius - į diameter r Volume ( V ) of a ... To estimate pipe volume, use the following formula: volume = π × d 2 4 × h. Thus, the volume of a pipe is equal to pi times the pipe diameter d squared over 4, times the length of the pipe h. The below given is the online volume of water calculator cylinder to calculate the liquid volume filled in a vertical, horizontal, rectangle, horizontal oval, vertical oval, horizontal capsule and vertical capsule cylinder. The formula to calculate the volume of a cylinder is given by. If you know the diameter of the cylinder, you can find the radius by dividing the diameter by two, or just use our circle diameter calculator. It is the idealized version of a solid physical tin can having lids on top and bottom. Bea also calculates the volume of the sugar cone and finds that the difference is < 15%, and decides to purchase a sugar cone. Found inside – Page 174Take the calculator and set the revolving disk so that the figure on it corresponding to the boiling point of the water is exactly ... The graduations on the outer circle of the calculator represent percentages of alcohol by volume . = 3.14 x (8) 2. = 3.1416 x 25 x 10. Found inside – Page 2265 Calculate the volumes of these prisms: a b 6 A cuboid has a volume of 25 cm3. ... The outer circle has a radius of 20 cm, and the inner circle has a diameter of 10 cm. a Calculate the shaded area. b The pipe is 1 metre long. Click Here To See Circle, Sphere and Cylinder Formulas This is the circle's diameter, in this case, 31.8 centimeters. Use the calculator below to calculate the volume of a horizontal cylinder segment. Volume is expressed as cubic units ; because we measured using inches the volume of our cylinder is cubic inches. Volume of a cylinder formula: V = π r 2 h. Cylinder Volume = 3.14159265 x radius 2 x height. ; Divide the volume by pi and the height. The distance between any point of a circle and the center of a circle is called its radius, while the diameter of a circle is defined as the largest distance between any two points on a circle. Area of a Circle Calculator: If you need some help with geometry exercises this is the right page for you. A three-dimensional circle is known as a sphere. A cylinder is a solid composed of two congruent circles in parallel planes, their interiors, and all the line segments parallel to the segment containing the centers of both circles with endpoints on the circular regions. In order to calculate either the surface area or the volume of a sphere, you need to know the radius (r). The diameter of a circle is a line segment that passes through the center of a circle and has two endpoints at the circumference. To begin with, remember that pi is an irrational number written with the symbol π. π is roughly equal to 3.14. Found inside – Page 296( ii ) Calculate the length of the edge of a single cube which has the same volume as the total volume of the three cubes . NEAB 8. ... Calculate the volume of the prism . SEG 9 . ... ( b ) Calculate the radius of the circle . SEG 10. It is an online Geometry tool requires radius length of a circle. Found inside – Page 326 MEASUREMENT Length, mass and volume Include: • conversion of a measurement from a smaller unit to a larger unit in ... 5 MEASUREMENT Area and circumference of circle Include: • use of formulae to calculate the area and circumference ... Volume and Area of the Cylinder. See Area of a circle segment given height and radius. Found inside – Page 23Shape Example Formula Circle Circumference = 2πr = πD where r is radius and D D is diameter r A right triangle (meaning ... Note: Since the formula involves pi, use a calculator when possible to find the volume of a cylinder in order to ... Examples: Input : r=3, R=7 Output : Volume: 1243.568195 Surface: 829.045464 Precise Calculator is a good simple calculator, that can be used to calculate a number of mathematical problems including geometrical calculations. 4 These areas shown for reference 1000 cubic centimetres = 1 litre. Simply multiply 3.1415 (π) by the radius, by the radius again, by the depth or use our simple volume . = 8.7222. Found insideWork out: a the area b the circumference of the circle. ... Use the 'rt' button on your calculator. ... 8 Work out the volume of each prism. a I b 24 cm2 5 cm 9 Work out the surface area of the prisms in parts b and C of question 8. Given radius of sphere, calculate the volume and surface area of sphere. Where V is the volume of the cylinder and r is the radius of the circular bases of the cylinder; so the height of a cylinder is equal to the volume of the cylinder divided by πr2. INSTRUCTIONS: Choose units and enter the following: (h) Height of the semicircle shape(r) Radius of the semicircle shapeSemicircle Volume (V): The calculator returns the volume in cubic meters.However, this can be automatically converted to compatible units via the . Found inside – Page 89The revolving disk of the calculator is graduated in degrees centigrade corresponding to the graduations on the thermometer . The graduations on the outer circle of the calculator represent percentages of alcohol by volume . Found inside – Page 60Total surface area = 6 x 12 = 6 x 7.203 x 7.203 m2 = 311.299 m2 = 311.3 m2 Volume = 13 = 7.203 x 7.203 x 7.203 m3 = 373.7 m Example 4.09 . The diameter of a circle is 2.486 m . Calculate its area with due regard for significant figures ... Free online calculators for area, volume and surface area. Free online tool for calculating the common formulae for circles, triangles and more . The next equations show how you can instead find the diameter from them. A sphere is the three-dimensional counterpart of the two-dimensional circle. π = pi (pi has the value 3.141592 which is the ratio a circle's circumference to its diameter) r = radius of cylinder. The base of a quarter cylinder is a quarter of a circle with a radius r. The volume of a quarter cylinder is equal to one fourth (¼) of a volume of a cylinder with a circle of that same radius r at its base. Found inside – Page 34Volumes of cylinders are included and the example reminds the pupil how to find the area of a circle . ... Check the section notes in this chapter referring to the Graphic Calculator Support at the back of this Teacher File . 3. Volume ... Found inside – Page 134Recall that the circumference of a circle is the distance around it. To find the Circle formulas circumference of a circle with diameter equal to 14 ft, we proceed as follows. ... Use a calculator to approximate the volume. Volume is denoted by V symbol. Like prisms, the volume is found by multiplying the area of one end of the cylinder (base) by its height. A generalized form of a cube. We get many questions asking us to calculate the volume of topsoil, gravel, water, concrete, etc. Found inside – Page 71Points MEASUREMENT Circles and Cylinders 15 mins 1 The perimeter of a circle is called the circumference . ... x 62 x 8 8 cm = 2881 :: volume is 2887 cm3 12 cm → Checklist Can you : 1 Calculate the circumference and area of a circle ? The following tool will help you find the volume for some common shapes. Compute the arc angle by inserting the values of the arc length and radius. Therefore: V(tank) = π r 2 l Calculate the filled volume of a horizontal cylinder tank by first finding the area, A, of a circular segment and multiplying it by the length, l. Calculate the amount of concrete you need in cubic feet and yards for a footing or slab in the shape of a donut. This tells us that the circumference of the circle is three "and a bit" times . Please provide any value below to calculate the remaining values of a circle. Volume of a spherical sector = (2/3)πR 2 h, where, R is radius of sphere, h is height. A quadrant is a quarter of a circle. How To Calculate Diameter? Calculating a square hole: 0.4 × 0.4 = 0.16 m 2; 2. Where π is the constant (3.141592654) Circle Calculator. For a pipe use its length instead of height: pipe volume = π * radius² * length, where radius = inner diameter/2. So to work out the area of a quadrant, first work out the area of the whole circle (use the formula A = π ×r²) and then divide the answer by 4. volume = (4/3)πr3. Formulas for volume: Cone = , where r is the radius and h is the height. We can use 10 other way(s) to calculate the same, which is/are as follows -. Volume = 785.3982 in³. Related Searches to Python Program to find Volume and Surface Area of Sphere python code that will calculate and print both the area of the circle and the volume of the sphere calculate volume of cylinder python volume and surface area of a sphere python calculate the volume of a sphere in python write a python program to find the location of python module sources. Just choose the cylinder type and fill the requested values in the liquid volume calculator to know the total volume and water-filled volume inside the cylinder. Calculate the radius needed to draw a 50 hectare circle around a point in GIS. Visual in the figure below: Since, The Volume of a Cylinder (V)= πr 2 h. Where: π: It is a constant whose value is 3.142 or 22/7. Found inside – Page 10... x 2 Area = h Circle: Perimeter=2x pix ror Perimeter = pix d Area = pix r- or Area = (pix d2)/4 Volume of solids The volume is a measure ... We have also included a calculator that will help you to practice and to check your answers. So to calculate the cross sectional area of a cylinder you need to calculate the area of a circle. Choose the shape as per your requirement for calculating the area, or volume, or perimeter by using the available links and then enter the values. Volume of a Rectangle Calculator. Multiply the area of the cylinder base (the circle) by the height of the cylinder. volume = (4/3)πr3. Using this calculator, we will understand methods . of various shapes. Sphere = , where r is the radius. The Area of a Circle (A)= πr 2. The formula for the volume of a cylinder is height x π x (diameter / 2)2, where (diameter / 2) is the radius of the base (d = 2 x r), so another way to write it is height x π x radius2. for rectangular and cylindrical (round) shapes. To calculate the concrete volume needed for this type of slab, you need to know the outer diameter of the circle, the inner diameter, and the required . Volume measurement units conversion; Circle area to diameter; User Guide. Volume is the amount of space that a substance or object occupies or that is enclosed within a container. Circle, Sphere & Cylinder Calculator Cylinder Calculator revised August, 2014 If you know two variables (area, volume, radius, height) it solves for the other two. The shape is also known as the rectangular cuboid, right cuboid, rectangular hexahedron, right rectangular prism, or rectangular parallelepiped. Find the area of circle. No conversion needed, since length, diameter and volume units can be selected independently, so this calculator allows you to use any mixture of measurement units. volume = πr2h, A cube is the three-dimensional analog of a square. n = (π * R 2) / ( 2 * r) 2. h: It is the height of the cylinder. Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14. If A is the area of the cross sectional area (and of the the related circle) then you use A = . Circle Calculator. det2 (a,b,c,d) 2 by 2 matrix determinant. c = 2 × π × r = π × D = 2 × √π × S, where r, D and S are the radius, diameter and area of a circle respectively. The circumference of a circle can be defined as the distance around the circle, or the length of a circuit along the circle. This will be more accurate than trying to measure half of the diameter. Found inside – Page 212On the AP exam , cross - sections will be squares , equilateral triangles , circles or semi - circles , or maybe isosceles ... Now , we can find the volume by evaluating the 4 because the area of an equilateral triangle is ( side ) ? Use the same units (inches or millimeters) to . Circumference of a circle = 2 × π × Radius. 3769.91118430775 Cubic Meter --> No Conversion Required, The volume of a circular cylinder can be defined as the quantity of three-dimensional space enclosed by a circular cylinder and is represented as. Note: this is a circular area with a circular hole on the inside, not a torus!! volume = π × r 2 × h. The volume of a cylinder in cubic feet is equal to π times the radius in feet squared times the height in feet. = 3.14 x (8) 2. Team Softusvista has created this Calculator and 500+ more calculators! Dimensions of a circle: O - origin, R - radius, D - diameter, C - circumference ( Wikimedia) Area, on the other hand, is all the space contained . Geometry Calculators and Solvers. The diameter of the outer circle depends on the number and diameter of inner circles. Where r is the radius of the small circle and R is the radius of bigger circle and Pi is constant Pi=3.14159. This is typically written as C = πd. C1 represents the outer circle of the Annulus and C2 represents the inner circle of the annulas. Volume of a Circular Cylinder calculator uses. Change all units: cm. The equation for diameter of a circle from circumference is: d = c / π. d=c/\pi d = c/π. This calculator uses the following formulas: Radius = Diameter / 2. det3 (a,b,c,d,e,f,g,h,i) 3 by 3 matrix determinant. Found inside – Page 228To calculate the volume of a cylinder, combine the calculation of the area of a circle with the height. To do this, multiply pitimes the square of the radius and the height. • Formula: Volume of a Cylinder π * r2 x H = V where: π = pi r ... Compute the arc angle by inserting the values of the arc length and radius. These may be used to check homework answers, practice or explore with various values for deep understanding. Here, you are provided with the formula that is to be used in area calculator, volume calculator, and surface area calculator. = 3.14 x 10 2 / 6 2. Total volume of a cylinder shaped tank is the area, A, of the circular end times the length, l. A = π r 2 where r is the radius which is equal to 1/2 the diameter or d/2. Found inside – Page 136I chose to have my students calculate the volumes of the cylinder family members by hand (or with a calculator) and ... to complete the calculation of the volume, we needed to find the length of the rectangle, the radius of the circle, ...