In an isosceles trapezoid, the angle with a large base is 45 degrees, find the angle adjacent to the angle

In an isosceles trapezoid, the angle with a large base is 45 degrees, find the angle adjacent to the angle of the trapezoid with a smaller base.

The angle KBA is equal to the angle BAD as criss-crossing angles at the intersection of parallel straight lines KC and AD secant AB, then the angle KBA = BAD = 45.
Answer: The adjacent angle is 45.



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