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pig4pen
pig4pen pig4pen
  • 02-05-2016
  • Mathematics
Answered

How many cubic inches of material do you need to make a solid rubber ball with a diameter of 3 in.? Round your answer to two decimal places.

Verified Answer :

W0lf93
W0lf93 W0lf93
  • 13-04-2017

The materials to be used to make the rubber ball will cover the circumference of the ball. Hence, the cubic inches of material to be used represent the volume of the sphere with diameter = 3 inches (radius = 3 / 2 = 1.5 inches). The volume of a sphere is given by V = 4/3 pi r^3 = 4/3 pi x (1.5)^3 = 14.14 cubic inches.

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