Question

A square pyramid has a volume of 20 cubic feet and a base length of 5 feet. What is it's height?

Answer 1

The height of the pyramid is
`2.4\ ft`

Explanation:

we know that

The volume of a square pyramid is equal to

`V=(1)/(3)b^(2)h`

we have

`V=20\ ft^(3)`

`b=5\ ft`

substitute and solve for h

`20=(1)/(3)(5)^(2)h`

`60=(25)h`

`h=60/(25)=2.4\ ft`