If the volume of a solid right circular cone is v cm3 and its height is h cm, then the radius of the cone is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. √3V/πh cm.
The volume of the cone = 1/3πr2h
⇒ V = 1/3 × π × r2 × h
⇒ 3V = π × r2 × h
⇒ r2 = 3V/πh
⇒ r = √3V/πh cm