Question

A glass in the form of a frustum of a cone has
radii 8 cm and 6 cm and slant height 30 cm.
Find the curved surface area of glass.​

Answer 1

Step-by-step explanation:

curved surface area of frustum = area of glass

you can find it simple formula of csa of frustum

.

Answer 2

Step-by-step explanation:

curved surface area = πl (r1 + r2)

=22/7*30*14

=22*30*2

=1320cm²