Find the value of x in the quadrilateral ABCD.
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Answer:
107.5°
Step-by-step explanation:
Sum of all the angles of a quadrilateral are 360°
So, 90°+56°+x+x = 360°
146°+2x = 360°
2x = 360°-145° = 215°
x = 215/2 = 107.5°
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