The volume of a right circular cone having a base diameter of 14 cm is 196π cm3 .Find the perpendicular height of this cone
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 12 cm.
The volume of a right circular cone = 196π cm3
Diameter = 14 cm:
Volume of cone = (1/3)πr2h
⇒ Volume of cone = (1/3) × (22/7) × 72 × h
⇒ 196π = (1/3) × (22/7) × 72 × h
⇒ h = 12 cm