Problem 405. Quadrilateral, 60, 75, and 135 degrees, Midpoint.
Level: High School, College, SAT Prep.
The figure shows a quadrilateral ABCD with AD = CD = 2, and the
measure of the angles A, C, and D are equal to 75, 135, and 60
degrees, respectively. If E is the midpoint of CD, find BE.

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