Question

what is the volume of this rectangular pyramid? 76 in 90 in 90 in cubic inches submit

Explanation:

Step1: Identify base area

The base is a square with side 90 in. Area = $90 \times 90 = 8100$ sq in.

Step2: Use pyramid volume formula

Volume = $\frac{1}{3} \times$ base area $\times$ height. Height = 76 in.
$$\text{Volume} = \frac{1}{3} \times 8100 \times 76$$

Step3: Calculate the result

$\frac{1}{3} \times 8100 = 2700$; $2700 \times 76 = 205200$

Answer:

205200 cubic inches