Question

09. The formula for finding the number of diagonals of n-sided polygon is.​

Answer 1

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The number of diagonals in apolygon = n(n-3)/2, where n is thenumber of polygon sides. For a convex n-sided polygon, there are nvertices, and from each vertex you can draw n-3 diagonals, so the totalnumber of diagonals that can be drawn is n(n-3).

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Answer 2

Answer:

[N - 2] 180

This is the formula

Hope it helps u