A radius of the base of a right circular cone is 6 cm and

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A radius of the base of a right circular cone is 6 cm and its slant height is 28 cm. The curved surface area of the cone is ?

1. 268 sq. cm
2. 528 sq. cm
3. 462 sq. cm
4. 658 sq. cm

Correct Option: B

Curved surface area = πrl
= (22/7 x 6 x 28) cm²
= 528 cm²