What is the quickest way to solve this? If a convex polygon has n sides and 25n diagonals, find the value of n. Thanks!
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Hmm...I think you would solve it like this $\displaystyle \frac{n(n-3)}{2}=25n$ Solve for n. I got $\displaystyle n = 53$ when solving. I hope that's right sorry if its not.
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