A right triangle with sides 5 cm, 12 cm and 13 cm is rotated about the side 12 cm to form a cone. The volume of the cone so formed is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 100π cm3
Here h = 12cm , r = 5 cm
Volume of cone = πr2h/3
Volume of cone = π × 52 × 12/3
Volume of cone = (25 × 4)π = 100π cm3