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14 March, 11:31

What is the volume of a pyramid that has a base with an area of 81 square feet and a height of 4 feet?

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  1. 14 March, 11:47
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    V = 1/3 x base² x h

    81 = 1/3 x base² x 4

    81 = 4/3 x base²

    81:4/3 = 4/3: 4/3 x base²

    base² = 60.75

    √base² = √60.75

    base = 7.79 feet
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