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Radius of a solid hemisphere is 12 cm. If hemisphere is melted to form a cone whose base radius is equal to the radius of hemisphere, then…

5130Medium DSSSB TGT Computer Science 0 replies 0 views
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Radius of a solid hemisphere is 12 cm. If hemisphere is melted to form a cone whose base radius is equal to the radius of hemisphere, then what will be the height of cone?
  • A8 cm
  • B18 cm
  • C24 cm
  • D16 cm
Correct answer: C

Explanation

Volume of hemisphere (2/3)πr³ = volume of cone (1/3)πr²h, so h = 2r = 24 cm.
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