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Geometry Problem 105. Angles, Triangle, Interior Point. Level: High School, Honors Geometry, College, Mathematics Education

In the figure below, given a triangle ABC, angle ABD = a , angle BAD = angle DAC = b , angle BCD = 90 - a - b , and angle ACD = x. Prove that x = a. View or post a solution.
 

Geometry Problem, Elearning 105


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