Question

the surface area of a sphere of radius 7cm is ​

Answer 1

Answer:

given r=7cm

surface area of Sphere=4πr×r

= 4×22/7×7×7

=616cm square

Answer 2

Answer:

Hi,

The total surface area of sphere = 4πr^2

we have radius = 7cm

by using above formula,

= 4×22/7 ×7×7

=4×22×7

=616