Answer: [tex]153.86\ cm^2[/tex]
Step-by-step explanation:
The surface area of a sphere is given by :-
[tex]\text{Surface area }=4\pi r^2[/tex]
Given: Diameter of sphere = 7 cm
then radius of sphere =[tex]\frac{7}{2}=3.5\ cm[/tex]
Therefore, the surface area of the given sphere will be :-
[tex]\text{Surface area }=4(3.14) (3.5)^2\\\\\Rightarrow \text{Surface area }=153.86[/tex]
Hence, the surface area of the sphere = [tex]153.86\ cm^2[/tex]
