Mathematics · Mensuration
3 right circular cylinders having the same base radius (r cm) and the same height (h cm) are placed one upon the other, to form another right cylinder whose radius of base is also r cm. The total surface area (in cm2) of this new right cylindrical solid so formed is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 16πrh + 4πr2✓
- 24πrh + 4πr2
- 36πrh + 2πr2
- 46πrh + 6πr2
Correct answer
6πrh + 4πr2
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