how do I find the volume of a pyramid with a square base, 20 meters on each side, and a height of 21 meters
V = 1/3 * base area * height
V = (1/3)(400)(21)
V = 2,800 cubic meters
http://www.mathsisfun.com/geometry/square-pyramid.html
Volume of a pyramid is
1/3 times area of base times ht
base is 20(20)= 400 height=21
V= 1/3(400)(21)cubic units
To find the volume of a pyramid, you can use the formula: Volume = (1/3) * base area * height.
In this case, the base is a square with sides measuring 20 meters each, and the height is 21 meters.
To find the base area, you can use the formula for the area of a square: Area = side length * side length.
First, calculate the base area:
Area = 20 meters * 20 meters = 400 square meters.
Next, substitute the values into the volume formula and calculate:
Volume = (1/3) * 400 square meters * 21 meters
Volume = (1/3) * 8400 cubic meters
Volume = 2800 cubic meters.
Therefore, the volume of the pyramid is 2800 cubic meters.