Find the volume of a pyramid with a square base, where the perimeter of the base is 4.2ft and the height of the pyramid is 4.7ft. Round your answer to the nearest tenth of a cubic foot.Answer: ft3
Q. Find the volume of a pyramid with a square base, where the perimeter of the base is 4.2ft and the height of the pyramid is 4.7ft. Round your answer to the nearest tenth of a cubic foot.Answer: ft3
Find Side Length: To find the volume of a pyramid with a square base, we need to know the length of a side of the base square and the height of the pyramid. The formula for the volume of a pyramid is V=(31)×base area×height. First, we need to find the length of a side of the base square using the perimeter.The perimeter (P) of a square is given by P=4×side length(s). Given P=4.2 feet, we can solve for s.s=4Ps=44.2 fts=1.05 ft
Calculate Base Area: Now that we have the length of a side of the base square, we can find the area of the base A. The area of a square is given by A=s2. A=(1.05ft)2A=1.1025ft2
Calculate Volume: With the base area and the height of the pyramid known, we can now calculate the volume V. V=31×base area×height V=31×1.1025ft2×4.7ft V=0.3675ft2×4.7ft V=1.72725ft3
Round Final Answer: Finally, we round the answer to the nearest tenth of a cubic foot. V≈1.7ft3
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