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19 August, 22:30

A spherical model of the earth has a diameter of 18 in. What is the approximate volume of the model?

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  1. 19 August, 23:00
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    Volume of sphere = 4/3pi (r2). 4/3pi729. 4/3 * 729 = 972. 972 * pi = 3053.358. Round this to however many s. f./d. p. you need.
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