This website contains problems from math contests. Problems and corresponding tags were obtained from the Art of Problem Solving website.

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Found problems: 1

2020 Harvest Math Invitational Team Round Problems, HMI Team #3

3. Let $ABC$ be a triangle with $AB=30$, $BC=14$, and $CA=26$. Let $N$ be the center of the equilateral triangle constructed externally on side $AB$. Let $M$ be the center of the square constructed externally on side $BC$. Given that the area of quadrilateral $ACMN$ can be expressed as $a+b\sqrt{c}$ for positive integers $a$, $b$ and $c$ such that $c$ is not divisible by the square of any prime, compute $a+b+c$. [i]Proposed by winnertakeover[/i]