Respuesta :

T.S.A. of hemisphere = 3 π r^2

243 π = 3 π r^2

r^2 = 243/3 = 81

r =√81=9cm

Volume of hemisphere,

= 2/3 π r^3

=2/3 × 3.14 × 9 × 9 × 9

=1,526.04 cm^3

HOPE THIS WILL HELP YOU