The angles of 125 and 43 degrees cannot belong to the same lateral side, since their sum is not 180, and for a trapezoid the sum of the angles at the lateral side is 180.
Determine the angle BAD. BAD = 180 – 125 = 55.
Let’s define the angle ВСD. BAD = 180 – 43 = 137.
Answer: The remaining angles are 55 and 137 degrees.
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