SOLUTION: The ratio of the radii of 2 circles is 1.5 What is the ratio between the circumference of the circles and the ratio between the areas of the circles?

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Question 1019344: The ratio of the radii of 2 circles is 1.5
What is the ratio between the circumference of the circles and the ratio between the areas of the circles?
Found 2 solutions by Alan3354, robertb:
Answer by Alan3354(69443) About Me  (Show Source):
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The ratio of the radii of 2 circles is 1.5
What is the ratio between the circumference of the circles and the ratio between the areas of the circles?
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A ratio is 2 values.
1.5 is only 1 value.
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1.5 to what?

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Let r%5B2%5D be the radius of the bigger circle, and r%5B1%5D be the radius of the smaller circle.
From the given, r%5B2%5D%2Fr%5B1%5D+=+3%2F2+=+1.5.
Hence, the ratio between the circumference of the two circles is .
Also, the ratio between the area of the two circles is