Question

find the length if the radius of a sphere with surface area of 60.82 mm
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Answer 1

The surface area of a sphere is:
\[SA=4\pi r^2\]So, since you know the surface area, plug in 60.82 mm for SA, and then solve for the radius, r

Answer 2

SA = 4 pi . r^2

Answer 3

so it would be 60.82=4pi(r)^2