Find the volume of a pyramid with a square base, where the side length of the base is 12, point, 8, in12.8 in and the height of the pyramid is 20, point, 4, in20.4 in. Round your answer to the nearest tenth of a cubic inch.
To find the volume of a pyramid, you can use the formula:
V = (1/3) * base area * height
First, calculate the area of the base, which is a square with side length of 12.8 inches:
base area = 12.8 * 12.8 = 163.84 square inches
Now plug in the values into the formula:
V = (1/3) * 163.84 * 20.4
V = (1/3) * 3340.736
V = 1113.57867 cubic inches
Rounded to the nearest tenth, the volume of the pyramid is approximately 1113.6 cubic inches.