Question

Write the formula to calculate the curved surface area of the frustum of a
cone.​

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

$surface \: area \: of \: frustum \: of \: a \\ cone \: = \pi \: l(r1 + r2)$