Question

what is the formula of curved surface area of frustum of 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.

Step-by-step explanation:

Answer 2

Answer:

check ncert...book

last page of chapter..Surface areas and volumes

it will help u..