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OpenStudy (anonymous):
Find the surface area of the sphere to the nearest square unit. Use a calculator. A. 13 in.2 B. 50 in.2 C. 6 in.2 D. 3 in.2
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OpenStudy (anonymous):
OpenStudy (campbell_st):
well you need a radius but the formula is \[SA = 4 \pi r^2\]
OpenStudy (campbell_st):
you have a diameter of 2 so the radius is 1 just substitute and calculate
OpenStudy (anonymous):
A.? @campbell_st
OpenStudy (campbell_st):
that's correct
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OpenStudy (anonymous):
Yay!
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