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)
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The volume of a rectangular pyramid can be calculated using the formula:
$\text{Volume} = \frac{1}{3} \times \text{Base Area} \times \text{Height}$
In this case, the base area of the rectangular base is $8 \times 12 = 96$ square inches. Plugging in the values:
$\text{Volume} = \frac{1}{3} \times 96 \times 20 = \frac{1}{3} \times 1920 = 640$ cubic inches
Therefore, the volume of Cecilia's model pyramid is 640 cubic inches.