Question

Picture needed to understand question

Answer 1

@ganeshie8

Answer 2

1) finding the radius x
finding the radius

Answer 3

x^2=R^2-(R-h)^2

Answer 4

now what is the surface area is 4pi r^2

Answer 5

x^2=R^2-(R-h)^2
x^2= R^2 -R^2 +2Rh-h^2
x^2=2Rh-h^2
x=sqrt(2Rh-h^2)