Q. The curved surface area of a cone is 308 cm² and its radius is 7 cm. The slant height is:
β
Correct Answer: (B)
14 cm
Explanation: πrl = 308 ⇒ (22/7) × 7 × l = 308 ⇒ l = 14 cm.
Explanation by: Mahesh Chandra
πrl = 308 ⇒ (22/7) × 7 × l = 308 ⇒ l = 14 cm.