Question

find the T.S.A of a cone whose radius is r/2 and slant height is 2l

Answer 1

$tsa \: of \: cone = 2\pi \: rl$
=2x22/7xr/2x21

=88rl/14

=6.28rl

Answer 2

Answer:

Step-by-step explanation:

TSA of a cone=pi*r(l+r)

radius=r/2 , slant h

pi *r/2(2l+r/2)

pi r/2((4l+r)/2)