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A polygon has 44 diagonals. The number o...

A polygon has 44 diagonals. The number of its sides are

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Total no of lines from n points is `n_(C_2)`
And total sides of polygon `=\n`
(Combination of two points out of n points)-(number of sides that is equal to number of pints i.e n) `=` Number of diagonals
` n_(C_2)-\n=44`
` frac(n(n-1))(2)-\n=44`
...
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