Q: What is the volume of a cylinder that has a radius of 8 cm and a height of 20 cm?

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Radius: square root of (12320/20*pi) = 14.00281721 cm Diameter: 28.00563442 cm

You will need to know the height and diameter of the cylinder. Then multiply pi (3.14159) by the square of the radius (r= exactly half of the diameter) , and then multiply that by the height.V = πr²hExample: The cylinder is 12 inches in diameter, and 20 inches tallV= (3.14159 × 6²) × 20(3.14159 × 36) × 20113.097 × 20 = 2261.94 in³

Let the radius of the first be 2r; then the radius of the second is 3r Let the height of the first be 5h; then the height of the second is 4h volume cylinder = π × radius² × height → volume first = π × (2r)² × 5h = 20πr²h → volume second = π × (3r)² × 4h = 36πr²h → ratio of their volumes is: 20πr²h : 36πr²h = 20 : 36 (divide by πr²h) = 5 : 9 (divide by 4)

Volume of a cylinder = (pi) (radius)2 (length)Volume = (pi) (0.25-ft)2 (20-ft) = 1.25 (pi) cubic feet = 3.927 cubic feet = 29.376 gallons (rounded)

(assuming this is a cylinder)V = πr²hV = (3.14159) × (2.25)² × 20V = 3.14159 × 5.0625 × 20V ≈ 318.09 cubic feet or 2379.48 gallons

Related questions

Volume is 1,005.3 cm3

(V = Pi*r2h): A cylinder with a radius of 3 cm and a height of 20 cm has a volume of 565.49 cm3

A cylinder of radius 14 cm and height 20cm. Sketch the solids and find the volume

H = 0.00308 meters.

h = 0.1299 cm

V = 565.49 cm3

20 pie cm^3

7.0

In order to find the volume of the cylinder more information is required as to the actual dimensions of the cylinder. Volume is calculated by knowing the radius and height of the cylinder.

It is the area of the circle (pi Rsquared=100PI) times the height 20 total area is 2000PI

The volume of a cylinder is calculated using the formula V = πr^2h, where r is the radius and h is the height. Given a radius of 7 cm and a height of 20 cm, the volume of the cylinder would be V = π(7)^2(20) = 3080π cubic cm or approximately 9681.73 cubic cm.

Vol = pi*r2*h = 3078.761 cubic units, approx.