Online Geometry Problems

Geometry Problem 830: Solving for an Unknown Angle in a Quadrilateral using Congruence and Given Angle Measures, Including a 30 Degree Angle. Level: High School, Math Education

Consider the quadrilateral ABCD below, where AC = CD, angle BAD measures 73 degrees, angle ADB measures 34 degrees, and angle CBD measures 30 degrees. Using elementary geometry (Euclid's Elements), determine the measurement of angle BDC.

Geometry problem: Quadrilateral, Triangle, Angles, 30 degrees, Congruence

Unknown angle sought,
Congruence and given clues,

With measures known well,
Including thirty degree,
Solve the puzzle's spell.


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