Mathematics · Mensuration

A hollow hemisphere has uniform thickness. Its inner radius is r and outer radius is R. If R = 2r, find the ratio of its outer to inner curved surface areas.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

14 : 1✓
27 : 4
36 : 5
42 : 5

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4 : 1

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A hollow hemisphere has uniform thickness. Its inner radius is r and outer radius is R. If R = 2r, find the ratio of its outer to inner curved surface areas.

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A hollow hemisphere has uniform thickness. Its inner radius is r and outer radius is R. If R = 2r, find the ratio of its outer to inner curved surface areas.

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