Find the curved surface area of a cone, if its slant height is 60 cm a

1.	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» Slant height of cone (l) = 60 cm Radius of the base of the cone (r) = 21 cm Now, Curved surface area of the right circular cone = πrl = 22/7 x 21 x 60 = 3960 cm² Therefore the curved surface area of the right circular cone is 3960 cm²

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»

Slant height of cone (l) = 60 cm

Radius of the base of the cone (r) = 21 cm

Now, Curved surface area of the right circular cone = πrl

= 22/7 x 21 x 60

= 3960 cm²

Therefore the curved surface area of the right circular cone is 3960 cm²