How do you find the volume of a square pyramid with base edges of 21 feet and a height of 18 ft? Volume of a Pyramid
1/3 x (area of base) x height = 1/3 x (21 x 21) x 18 {the base is a square with an area of 21 x 21} = 1/3 x 441 x 18 {multiplied 21 by 21} = 1/3 x 7938 {took 441 x 18} = 2646 ft3{divided 7938 by 3}  Algebra House
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