The volume of a pyramid is one-third of the product of its altitude and area of the base.
Area of the base = (8 in)² = 64 in²
Altitude: The altitude is the length of the right triangle formed from the base and the slant height as the hypotenuse. (5 in)² = h² + (4 in)² h = 3 in
Volume: V = Ah/3 V = (64 in²)(9 in) / 3 = 192 in³
The volume of the solid right pyramid is equal to <em>192 in³</em>.
