SOLUTION: The radius of one circle is three times the radius of a second circle. Find the ratio of the areas.

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Question 384024: The radius of one circle is three times the radius of a second circle. Find the ratio of the areas.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
radius of circle A = r
radius of circle B = 3r
..
area of circle A = pi*r^2
area of circle B =pi*(3r)^2=pi*9r^2
Ratio+=+%28pi%2Ar%5E2%29%2F%289%2Api%2Ar%5E2%29
...
Ratio = 1/9
...
m.ananth@hotmail.ca