Question

A square pyramid with a height of 9 inches has volume of 75 cubic inches. Find the side length of the square base.?

Answer 1

5 inches

Explanation:

Volume=area of the base `xx1/3xxh`

`75=l^2xx1/3xx9`

`75=3l^2`

`l^2=25`

`l=\pm5`

As we can't have a negative length, the side is 5 inches