Question

The radius of a sphere is 1 cm what is its surface area? (π= 3.14)​

Answer 1

Surface area of Sphere is 4πr^2

Given Radius of Sphere is 1cm

so, surface area is

=4×3.14×1^2

=12.56cm^2

So, Options b) is the correct answer.

Answer 2

surface area of sphere is 12. 56cm^2...