Mathematics · Mensuration
A solid cylinder of base diameter 4 cm is melted to cast a hollow cylinder of external diameter 12 cm, thickness 0.5 cm, and height 15 cm. Find the height (in cm) of the solid cylinder (rounded off to 2 decimal places).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 118.65
- 220.85
- 322.54
- 421.56✓
Correct answer
21.56
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