Problem

2007 AMC 8 Problem 16

Amanda draws five circles with radii 1, 2, 3, 4 and 5. Then for each circle she plots the point (C,A), where C is its circumference and A is its area. Which of the following could be her graph?

AMC8 2007 16.png

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.


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Category: AMC 8
Points: 2
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