Question

diameter of the base of a cone is 10.5 cm and its slant height is 10 cm find its curved surface area

Answer 1

HEY....

CSA of a cone =
$\pi \: r \:l$
So by putting the given values CSA can be finded.

Answer 2

Answer:

Radius of the base of cone = diameter/ 2 = (10.5/2)cm = 5.25cm

Slant height of cone, say l = 10 cm

CSA of cone is = πrl

= (22/7)×5.25×10 = 165

Therefore, the curved surface area of the cone is 165 cm2.

hope will be helpful ☺️