Mathematics · Mensuration
A cylindrical disc of thickness 1 cm is made by melting two solid cylinders of radii 4 cm and 5 cm, and length 6 cm and 4 cm, respectively. The radius of the new cylinder is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 128 cm
- 214 cm✓
- 321 cm
- 47 cm
Correct answer
14 cm
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