Question

Curved surface area of hemisphere.
Just formula

Answer 1

2*pi*r^2

Answer 2

u mean \[2\times \pi r ^{2}\]

Answer 3

yeah

Answer 4

can u explain me how?

Answer 5

i think we got this area from the surface area of sphere
In 3-D objects , hemi means half
so we took the half of the surface area of sphere