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OpenStudy (anonymous):
determine the surface area of the sphere if its raduis measures 5.4 cm.
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OpenStudy (anonymous):
am, what is fomula for surface area and raduis? cn u tell me what is looking for in that problem? is that surface area or raduis?
OpenStudy (anonymous):
\[A= 4 \pi r^2\]
OpenStudy (anonymous):
sub in r, get calculator.
OpenStudy (anonymous):
your answer will be in cm^3
OpenStudy (anonymous):
ok tnx.
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