Question

The cylinder below has a height of 31mm and a volume of 4700mm. Work out the radius of the cylinder. If your answer is a decimal, give it to two decimal places

Answer 1

4700=πr²×31

4700/31=πr²

151.6.../π=r²

√151.6.../π=

6.946933566=r

r=6.95mm

Explain:

Volume of cylinder=

πr²×height