# Trapezium in a circle

Level pending

Let $$ABCD$$ be an isosceles trapezium with $$AD=BC$$, and with parallel bases of length $$AB=150$$ and $$CD=234$$. If the distance between $$\overline{AB}$$ and $$\overline{CD}$$ is $$56$$, find the circumradius of $$ABCD$$.

Details and assumptions

A trapezium has a pair of parallel sides.

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