The measure of BCA is
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What is the measure, in degrees, of angle BCA in quadrilateral ABCD? Statement 1 and 2 separately are not sufficient, but using them together, we can see that the angles situated at the opposite side of two parallel lines will be equal. So, angle BCA will be equal to the angle CAD, which value is given in statement 2
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130
angle AOB+angle OAC+angle OBC+angle BCA=360.
50+90+90+angle BCA=360
angle BCA=360-230
angle BCA=130.
I Hope this helped you.
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