Mathematics · Mensuration
The difference between the external and internal curved surface areas of a 7 cm long cylindrical metallic pipe is 110 cm2. If the pipe is made of 302.5 cm3 of metal, then find the inner radius of the pipe. (Use π = 227)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11.8 cm
- 22.2 cm
- 31.6 cm
- 41.5 cm✓
Correct answer
1.5 cm
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