Answer:
[tex]r=\sqrt{\frac{682}{4\pi}}\ m[/tex]
Step-by-step explanation:
we know that
The surface area of a sphere is equal to
[tex]SA=4\pi r^{2}[/tex]
we have
[tex]SA=682\ m^{2}[/tex]
substitute and solve for r
[tex]682=4\pi r^{2}[/tex]
[tex]r^{2}=\frac{682}{4\pi} \\ \\r=\sqrt{\frac{682}{4\pi}}\ m[/tex]
