Question

unit exam - 3d figures part 2
find the volume of the square pyramid.
use the formula: v = \frac{bh}{3}
b=area of the square base.
v = ? ft³

Explanation:

Step1: Calculate base - area

The base is a square with side length $s = 9$ ft. The area of a square $B=s^2$, so $B = 9\times9=81$ ft².

Step2: Substitute values into volume formula

We know that $B = 81$ ft² and $h = 12$ ft. Using the formula $V=\frac{Bh}{3}$, we substitute these values: $V=\frac{81\times12}{3}$.

Step3: Perform the calculation

First, $81\times12 = 972$. Then, $\frac{972}{3}=324$ ft³.

Answer:

$324$