Mathematics · Mensuration

A solid metal sphere of radius 9 cm is melted and recast into n identical solid hemispheres, each of radius 3 cm. Find the total curved surface area of all these hemispheres combined.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

11026π cm2
2864π cm2
31458π cm2✓
4972π cm2

Correct answer

1458π cm2

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A solid metal sphere of radius 9 cm is melted and recast into n identical solid hemispheres, each of radius 3 cm. Find the total curved surface area of all these hemispheres combined.

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A solid metal sphere of radius 9 cm is melted and recast into n identical solid hemispheres, each of radius 3 cm. Find the total curved surface area of all these hemispheres combined.

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