Online Geometry. Math teacher Master Degree.
 Problem 45. Angles, Triangle, 30 Degrees. Level: High School, SAT Prep, College

In the figure,  AB = BC, the measure of angle BAD is double the measure of angle BCD and the measure of angle ABD is triple the measure of angle CBD. Prove that x = 30°. Solution / comment.
 


 
 

 

 
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