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OpenStudy (anonymous):
What is the approximate surface area of the sphere?
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OpenStudy (anonymous):
OpenStudy (anonymous):
SA = 4πr^2
OpenStudy (anonymous):
but theres only circumfrance?
OpenStudy (anonymous):
Yes. Work backwards. If the formula for circumference is C = 2πr, divide 37.68 by 2π to get the radius. Then use that radius to find the approximated surface area.
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