Cecilia built a model pyramid out of foam. Her model is 20 inches high, with a rectangular base that is 8 inches long and 12 inches wide. What is the volume of her model in cubic inches?(1 point)
The volume of a rectangular pyramid can be calculated by using the formula V = (lwh)/3, where l is the length, w is the width, and h is the height.
In this case, the height of the pyramid is 20 inches, the length is 8 inches, and the width is 12 inches.
So, substituting these values into the formula:
V = (8 * 12 * 20) / 3
V = 1920 / 3
V = 640 cubic inches
Therefore, the volume of Cecilia's model pyramid is 640 cubic inches.