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6 December, 23:15

A toy manufacturer has designed a new piece for use in building models it is a cube with side length of 7MM and it has a 3MM diameter circular hole cut through the middle the manufacture wants 1,000,000 Proto types how much plastic is used for each prototype?

A - 343mm^3

B - 145mm^3

C - 29.50mm^3

D-293.5mm^3

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  1. 6 December, 23:38
    0
    Subtract the volume of the circular hole (cylinder) from the volume of the cube.

    (7^3 - Pi ((1.5) ^2) * 7) * 10^6

    = D
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