Question

What is the volume of the square pyramid with

base edges 10 in and height 9 in?
190in
270in
300in
420in

Answer 1

`300\ in^3`

Explanation:

Use formula for the volume of the square pyramid:

`V=(1)/(3)\cdot \text{Base area}\cdot \text{Height}`

The base is a square with side 10 inches long, so its area is

`\text{Base area}=10^2=100\ in^2`

The height of the pyramid is 9 inches long, so the volume is

`V=(1)/(3)\cdot 100\cdot 9=300\ in^3`