Mathematics · Mensuration
A solid cone of base radius 7 cm and height 18 cm is melted and recast into a hollow metal hemisphere of internal and external radii 20 cm and R cm, respectively. What is the value of R (in cm)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13√8144
- 23√8441✓
- 33√8448
- 43√8568
Correct answer
3√8441
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