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  • 5 years ago

The celestial sphere shown at right has radius 9 inches. The planet in the sphere’s center has radius 3 inches. What is the ratio of the volume of the planet to the volume of the celestial sphere? What is the ratio of the surface area of the planet to the surface area of the celestial sphere?

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  1. anonymous
    • 5 years ago
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    Volume sphere (4/3) pi r^3

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