Question

Write the formula to find total surface area of cone and 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.

T. S. A=πrl+πr2

Answer 2

Answer:

• hey dude the total surface area of cone is pi(rl + r^2)
• and total surface area of frustum of a cone is pi( r +R )l + pi r^2 + piR^2.