Mathematics · Mensuration
A right-angled triangle with sides 3 cm and 4 cm is made to revolve about its hypotenuse. The surface area of the double cone so formed is: (Take π = 227)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 160 cm2
- 252.8 cm2✓
- 370 cm2
- 450 cm2
Correct answer
52.8 cm2
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