Question 1205790
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4 sided polygon with angles of 20x, 8(2x+9degrees), 36x . Determine the value of angle x
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Regarding your problem, I have two messages for you.


First message is that the problem's formulation in the post is FATALLY DEFECTIVE, or FATALLY INCOMPLETE.
With this formulation, the problem can not be solved.



Second message is that the "solution" in the post by @MathLover1 is INCORRECT.
Simply ignore her post, for safety of your mind.