Question

Find the curved surface area of a cone,if its slant height is 60 cm and the radius of its base is 21 cm.

Answer 1

Radius of the base of the cone=21 cm and slant height (l) = 60 cm

$\therefore Curvedsurfacearea=\pi rl=\frac{22}{7}\times 21\times 60=3960c{m}^2$