Question

TSA of sphere is 4πR squared but TSA of hemisphere is 3 Pi R squared inst of 2πR Square how do you justify

Answer 1

becoz half of sphere = hemisphere hona chiye 2pi r but see the shape of hemisphere and take it's curved surface 2pi r + base which is circle pi r sq.= so,it is 3 pi r sq

Answer 2

so this answer is useful for you