the sum of the 2 angles of a quadrilateral is 210degree and the other two angles are equal . find the measure of each equal angles
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the sum of all 4 angles of a quadrilateral is equal to 360 degree
if 2 angles are equal to 210 then:-
210+a+b=360
210+2a=360 [a=b]
2a=360-210
a=150/2
a=75 and b=75
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