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10-08-2017
Mathematics

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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

Respuesta :

10-08-2017

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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