Question

Two angel of a quadrilateral are 67 and 115,and the remaining two angles are equal. find the measure of each of the equal angles

Answer 1

67+115+2×=360

2×=360-182

×=178/2
x=89

Answer 2

Let the angles be x.

67+115+x+x=360

182+2x=360

2x = 360-182

2x=178

x=89