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OpenStudy (anonymous):
CORRECT ME Find the length of the radius of a sphere with a surface area of 64.62 km2. A. 1.125 km B. 2.57 km C. 2.27 km D. 5.14 km
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OpenStudy (anonymous):
area of surface=4πr² r²=area/4π r=√(area/4π) r=√(64.62/4π) r= 2.26766 km so your answer of 2.27 km it's OK
OpenStudy (primeralph):
Yeah, good job.
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