Question

if the surface area of hemisphere is S then express r in terms of S anyone answer it immediately

Answer 1

Hy..

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Since TSA of hemisphere = 4* pi * r^2

=) S = 4* pi * r^2

=) S/4*pi = r^2

=) √S/4*pi = r

Hence radius = √(S/4*pi)

Hope it's helpful to u.