This shape is a pentagon (5 sides)
Formula used to find the sum of the interior angles: (n-2) 180
(5-2) 180
3 • 180
540
The sum of the interior angles is 540, therefore:
5x + 2 + 7x - 11 + 13x -31 + 8x - 19 + 10x - 3 = 540
43x - 62 = 540
43x = 602
x = 14
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