SOLUTION: a polygon has n sides has n diagonals. What is n?

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Question 1056652: a polygon has n sides has n diagonals. What is n?
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
 = n   ====>

 = 2n,

 = 5n  ====>

n = 5.

Answer. Pentagon.


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