A cylinder has a radius of 20cm and a length of 40cm. What is its volume? (Take pi as 3.1)
- 800 cm^3
- 49600 cm^3
- 50270 cm^3
Explanation
The volume of a cylinder is pi * r squared * length. With radius 20 cm, r squared is 400, so volume = 3.1 * 400 * 40 = 49600 cubic centimetres. Using pi as 3.1 as instructed gives this value; the 50270 answer uses the full value of pi.
elio0202 asking:
what is the formula of a volume of a cylinder please
Community Comments (1)
D
dimky Posts: 514 14.03.2012 / 23:24
Hey!
Pi * r^2 * h
Pi * r^2 * h
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