SOLUTION: What is the diameter of a circle containing 100 1/4 inch circles?

Question 635036: What is the diameter of a circle containing 100 1/4 inch circles?
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
I'm assuming it's 100 1/4 square inches.
Using the formula:
Area=pi*r^2
100.25=3.14*r^2
Divide by 3.14 to get:
31.93=r^2
Square root both sides and we get:
Radius = 5.65 inches (rounded off)
Now we double that to get the diameter and we have:
11.3 inches
Make sense?
RJ
www.math-unlock.com
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