A square pyramid with a height of 9 inches has volume of 75 cubic inches. Find the side length of the square base.?

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1 Answer
Mark D.
May 31, 2018

5 inches

Explanation:

Volume=area of the base xx1/3xxh×13×h

75=l^2xx1/3xx975=l2×13×9

75=3l^275=3l2

l^2=25l2=25

l=\pm5l=±5

As we can't have a negative length, the side is 5 inches

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