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8 October, 13:23

A cone-shaped hole is drilled into a solid cube of metal as shown. If the cube has sides of length 9 cm, what is the volume of the metal after the hole is drilled? Let π ≈ 3.14 and round your answer to the nearest tenth.

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  1. 8 October, 15:51
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    V (cube) = 9³=729 cm³

    V (cone) = 1/3*π*R²*H = 1/3*π*3²*9=84.8 cm³

    V (metal) = 729-84.8=644.2 cm³
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