Question

the formula to find the c s a of frustum of a cone is​

Answer 1

Answer:

The Curved Surface Area (CSA) of the frustum of a cone is: = pi * l(R + r) where the (r) stands for = radius of the smaller circle and (R) stands for = radius of the bigger circle and the (l) = slant height of the frustum.

Answer 2

Answer:

CSA of the frustum of a cone = πl( r1 + r2).

where r1 = radius of the larger circular face of the frustum, r2 = radius of the smaller circular face of the frustum, and l = slant height of the frustum.