Question

Radii of the two ends of a frustum are 2cm and 4cm and the slant height is 14cm. The CSA of the frustum is​

Answer 1

Answer:

Given: Radii are 4cm & 2cm slant height =14cm

Also, we know that

curved surface area of frustum of cone is= π×l(R+r)

Here l=14cm,r=4cm,R=2cm.

, CSA =π×14(2+4)cm^2

=14π(10)cm^2

=140πcm^3