Question

a cone has a volume of 1,570in3. If the height of the cone is 15 inches. Calculate the radius of the cone?

Answer 1

approximately 10

Explanation:

Volume = 1/3h times
`\pi` times radius square

1570 = 1/3 x 15 x 22/7 x
`r^(2)`

1570 = 5 times
`(22)/(7)` times
`r^(2)`

1570 = 15.71
`r^(2)`

`(1570)/(15.71)` =
`(15.71 r^(2))/(15.71)`

99.9 = r^2

`√(99.9)` = r

≅10