Question

find csa of right circular conewhose slant height is 10cm and base radius is 7cm.

Answer 1

CSA = πrl
so,CSA = 22/7 * 7 * 10 = 220 cm²

Answer 2

curved  s.a. = πrl

we are given
slant h (l)  =10
radius (r)  =7
now,
πrl= 22/7 × 7 × 10
7 ,7 get cancel

22 × 10=220