Geometry Problems, Online Education

 
 Problem 107. Angles, Triangle. Level: High School, SAT Prep, College

In the figure below, given a triangle ABC, angle BAD = 2a , angle DBC = a , and AB = CD. Prove that x = 180º- 4a.
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Problem 107, Angles, Triangle, Elearning. Math teacher Master Degree.

 

 
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