Question

4. The radius and height of a cylinder are in the ratio
7:2. If the volume of the cylinder is 8316 cm find
the radius and height of the cylinder.​

Answer 1

Step-by-step explanation:

volume =πr²×h

let the radius and height be'x'

8316=22/7 × (7x)²×2x

8316=22/7×49x²×2x

         =22/7×98x³

98x³=8316×7/22

       =2646

x³=2646/98

x³=27

x=∛27

x=3

7x=21cm

2x=6cm