Online Geometry Education

Problem 409: Quadrilateral, Diagonals, Perpendicular, Congruence

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. Post a comment or solution.


Quadrilateral, angle, diagonal, perpendicular, congruence

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