SOLUTION: Professional sandcastle-builders create a pyramid with a square base. The pyramids volume is 128 cubic feet and stands 6 feet high. What is the length of one side of the pyramids b

Algebra ->  Volume -> SOLUTION: Professional sandcastle-builders create a pyramid with a square base. The pyramids volume is 128 cubic feet and stands 6 feet high. What is the length of one side of the pyramids b      Log On


   



Question 1142090: Professional sandcastle-builders create a pyramid with a square base. The pyramids volume is 128 cubic feet and stands 6 feet high. What is the length of one side of the pyramids base?
A)4.6
B)6
C)7
D)8

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Volume of a pyramid is the same as that of a cone.
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Vol = b*h/3 where b is the area of the base.
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For a cone, base area b = pi*r^2 ---> the familiar formula pi%2Ar%5E2%2Ah%2F3