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OpenStudy (anonymous):
find the surface area of a sphere with radius 1.25 miles ill become your fan and give you an award
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OpenStudy (anonymous):
The surface area of a sphere is: \[SA=4 \pi r^2\]Where r is the radius. So, plug in 1.25 miles for r and solve for the surface area.
OpenStudy (anonymous):
i got 6.25
OpenStudy (anonymous):
Don't forget your pi
OpenStudy (anonymous):
19.63
OpenStudy (anonymous):
Right. And your units will be square miles
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