SOLUTION: Find the surface area of a sphere with a great circle that has an area of 49 π square miles.
a.225π mi^2
b.126 π mi^2
c.196 π mi^2
d.343 π mi^2
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Question 591070: Find the surface area of a sphere with a great circle that has an area of 49 π square miles.
a.225π mi^2
b.126 π mi^2
c.196 π mi^2
d.343 π mi^2
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
A = pi*r^2
49*pi = pi*r^2
49 = r^2
r = 7
----------------------------
SA = 4pi*r^2
SA = 4pi*(7)^2
SA = 4*49*pi
SA = 196pi
So the answer is choice C)
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