Question

The radius of a cone is 10.5 cm and the area of the curved surface is 396 cm². Find it's slant height. Take π = 22/7

Radius 10.5cm. Curved surface area 396 cm Curved surface area rl 227 10.5l 396 l 18710.5 12cm

A 9 cm

B 11.5 cm

C 12 cm

D 8.5 cm

Detailed Solution