Answer:
1296 in³
Step-by-step explanation:
The volume (V) of a pyramid is calculated as
V = [tex]\frac{1}{3}[/tex] Ah ( A is the area of the base and h the perpendicular height (
Here A = 18 × 18 = 324 and h = 12, thus
V = [tex]\frac{1}{3}[/tex] × 324 × 12 = 1296 in³
