2006 AMC 8 Problems/Problem 7
Problem 7
Circle has a radius of . Circle has a circumference of . Circle has an area of . List the circles in order from smallest to the largest radius.
Solution
Using the formulas of circles, and , we find that circle has a radius of and circle has a radius of . Also, circle X has a radius of \pi . Thus, the order from smallest to largest radius is .
See Also
2006 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 6 |
Followed by Problem 8 | |
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