Mathematics · Mensuration
A hollow cylinder of height h has inner and outer base radii given as r and R, respectively. The ratio of the curved surface area to the total surface area of this cylinder is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 2h   :   (h + R - r)✓
- 3(R - r - h)   :   r
- 4h   :   (R - r - h)
Correct answer
h   :   (h + R - r)
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