OpenStudy (anonymous):

Find the length of the radius of a sphere with a surface area of 64.62 km2.

5 years ago
OpenStudy (anonymous):

area of surface=4πr² so..

5 years ago
OpenStudy (anonymous):

i got 2.7

5 years ago
OpenStudy (anonymous):

r²=area/4π r=√(area/4π) r=√(64.62/4π) r= 2.26766 km r=2.27 km

5 years ago
OpenStudy (anonymous):

yes was right ^.^ thax u

5 years ago
OpenStudy (anonymous):

Np XD

5 years ago
OpenStudy (anonymous):

:)

5 years ago
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