Question

Find the T.S.A. of a hemisphere of radius 7CM

Answer 1

T.S.A of sphere =3πr^2
3*22/7*7*7
462cm^2

Answer 2

r=7cm

t.s.a=2pirsq

 =2*22/7*7*7

308cm

with out base

thnx might be helpfull