Q. The volume of a cone is 154 cm³ and its height is 6 cm. Using π = 22/7, the radius is:
✅ Correct Answer: (B)
5 cm
Explanation: 154 = (1/3) × (22/7) × r² × 6 ⇒ r² = 25 ⇒ r = 5 cm.
Explanation by: Krishna Sharma
154 = (1/3) × (22/7) × r² × 6 ⇒ r² = 25 ⇒ r = 5 cm.