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)
in^3
To find the volume of the model pyramid, we need to multiply the base area by the height and divide by 3.
The base area is found by multiplying the length and width of the rectangle:
base area = 8 inches * 12 inches = 96 square inches
Now we can find the volume:
volume = (base area * height) / 3
= (96 square inches * 20 inches) / 3
= 1920 cubic inches / 3
= <<1920/3=640>>640 cubic inches
Therefore, the volume of the model pyramid is 640 cubic inches.