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rayrenz

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## Homework Statement

A large circle is inscribed with 3 smaller circles, eachhttps://www.physicsforums.com/newthread.php?do=newthread&f=156 of the four circles is tangent to the other three. If the radius of each of the smaller circles is a, find the area of the largest circle.

## Homework Equations

## The Attempt at a Solution

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the answer must be 1/3pi(7+4√3)a²

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