Answer:
Surface area of tennis ball : 4624 π mm².
Step-by-step explanation:
Given : The diameter of a tennis ball is 68 mm.
To find : find its surface area. express your answer in terms of π.
Solution : We have given that diameter of a tennis ball is 68 mm.
Radius : [tex]\frac{Diameter}{2}[/tex]
Radius = [tex]\frac{68}{2}[/tex].
Radius = 34 mm .
Surface area of sphere : 4 * π * [tex]radius^{2}[/tex].
Surface area of tennis ball : 4 * π * [tex]radius^{2}[/tex].
Surface area of tennis ball : 4 * π * [tex](34)^{2}[/tex].
Surface area of tennis ball : 4624 π mm².
Therefore, Surface area of tennis ball : 4624 π mm².
