Question

find the total surface area of hemisphere of radius 10 cm

Answer 1

Total surface area of hemisphere = 3πr^2
Radius =10cm.

3 × 3.14 ×10 ×10
=942 Cm squared.

Hope that helps.

Answer 2

TSA of hemisphere =3pie r2
TSA =3*314/100*10*10
=3*314=942 cm2

So, tsa of hemisphere is 942cm2
Hope it helps you dear....