There are 44 diagonals in an 11-sided polygon.
heres how to find the amount of diagonals: S=amount of sides
1/2 S(S-3)
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Diagonals connect corners of a figure. If you try to connect two corners of a three sided figure, the lines you draw will exactly mimic the sides of the figure. Because of this, a three sided figure has no diagonals.
A 4 sided quadrilateral has 2 diagonals.
54
90
A pentagon is a 5 sided figure.