Problem 409: Quadrilateral, Diagonals,
Perpendicular, Congruence
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about: Quadrilateral, Diagonals, Perpendicular, Congruence. Online Geometry
Tutor.
The figure shows a quadrilateral ABCD with
AC perpendicular to BD. If the measure of angles BAC, CAD, and ACB are
equal to 20, 10, and 50 degrees, respectively, find the measure of angle
BDC.
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