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19 April, 16:14

The two spheres above have the same center. One has a radius of 4 cm, and the other has a radius of 5 cm. Approximately how much space is in between the two spheres?

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  1. 19 April, 16:19
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    Volume a sphere: [4/3]π (r^3)

    Space between the spheres = Volume of the larger sphere - Volume of the smaller sphere

    = [4/3]π (R^3) - [4/3π] (r^3) = [4/3]π (R^3 - r^3) = [4/3]π { (5cm) ^3 - (4cm) ^3} =

    = 255.5 cm^3

    Answer: 255.5 cm^3
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