Given a trapezoid, one of the angles 125 degrees and 43 degrees. Find the rest of the angles.

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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