SOLUTION: Two circles have the same center. The radius of the larger circle is 3 units longer than the radius of the smaller circle. Find the difference in the circumfrences of the two circl

Question 188028: Two circles have the same center. The radius of the larger circle is 3 units longer than the radius of the smaller circle. Find the difference in the circumfrences of the two circles. Round to the nerest hundredth.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Two circles have the same center. The radius of the larger circle is 3 units longer than the radius of the smaller circle. Find the difference in the circumfrences of the two circles. Round to the nerest hundredth.
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C = 2*pi*r
C2 = 2*pi*(r+3) = 2*pi*r + 6*pi
diff = 6pi = ~18.85 units
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Having the same center is not relevant.
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