A convex octagon has interior angles with measures (x+55), (3x+20), 4x, (4x-10), (6x-55), (3x+52), 3x, and (2x+30). Find the value of X.

Question

If someone could please help me out it would be greatly appreciated. Please.

Answer 1

the sum of interior angles of each polygon is (n-2)*180, where n is the number of sides or angles.

For an octagon n=8, then the sum of interior angles is 6*180=1080

 

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