Find the volume of a pyramid with a square base, where the perimeter of the base is 9ft and the height of the pyramid is 6.4ft. 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 9ft and the height of the pyramid is 6.4ft. Round your answer to the nearest tenth of a cubic foot.Answer: ft3
Find Side Length: First, we need to find the length of one side of the square base. Since the perimeter of a square is the sum of all its sides, and a square has four equal sides, we divide the perimeter by 4.Perimeter of the base = 9ftSide of the square base = Perimeter / 4Side of the square base = 9ft/4
Calculate Side Length: Now, calculate the side length of the square base.Side of the square base = 2.25ft
Calculate Base Area: Next, we calculate the area of the square base by squaring the side length.Area of the base = (Side of the square base)Area of the base = (2.25ft)2
Calculate Area: Perform the calculation for the area of the base.Area of the base = 2.25ft×2.25ft=5.0625ft2
Use Volume Formula: Now, we use the formula for the volume of a pyramid, which is (31)×base area×height. Volume of the pyramid = (31)×Area of the base×Height of the pyramid Volume of the pyramid = (31)×5.0625 ft2×6.4 ft
Calculate Volume: Finally, calculate the volume of the pyramid.Volume of the pyramid = (31)×5.0625 ft2×6.4 ft=31×32.4 ft3Volume of the pyramid = 10.8 ft3
Round Answer: Round the answer to the nearest tenth of a cubic foot. Volume of the pyramid ≈10.8 ft3 (since 10.8 is already at one decimal place, no further rounding is needed)
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