Monday, August 12, 2013

Problem 912: Right Triangle, Double Angle, Triple Angle, Perpendicular Lines

Geometry Problem
Post your solution in the comment box below

Level: Mathematics Education, High School, Honors Geometry, College.

Click the figure below to see the complete problem 912.

Online Geometry Problem 912: Right Triangle, Double Angle, Triple Angle, Perpendicular Lines.

2 comments:

  1. By 911, BCDE concylic and hence angle ABC = angle ADE.

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  2. Reference my proof in 911 the result follows since < CBE is right

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