find the angle measure x each of the following figures
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a = 180-75 = 105
b = 180-60=120
It is a quadrilateral so , sum of all angles will be 360
a + b + 90 + (180-x)=360
105 + 120 + 90+180-x=360
x = 495-360 = 135
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Hi ! here is your answer:
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