Question

Please help me to solve this question.

Answer 1

`314 (2)/(7) cm^(2)`

Explanation:

Surface area of sphere= 4πr², where r is the radius of the sphere.

Given that the diameter is 10cm,

2(radius)= 10cm

radius= 10 ÷2

radius= 5cm

Surface area of sphere

`= 4( (22)/(7) )( {5}^(2) ) \\ = 314 (2)/(7) cm^(2)`