Friday, August 28, 2009

Problem 350. Triangle, Cevian, Incircles, Tangents, Angles,Tangency Points

Proposed Problem
Click the figure below to see the complete problem 350 about Triangle, Cevian, Incircles, Tangents, Tangency Points, Angles.

Problem 350. Triangle, Cevian, Incircles, Tangents, Tangency Points, Angles.
See more:
Complete Problem 350
Level: High School, SAT Prep, College geometry

Posted by Antonio Gutierrez at 11:46 AM
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2 comments:

  1. Antonio GutierrezAugust 20, 2012 at 9:21 AM

    Problem 350 solution: This solution was submitted by Michael Tsourakakis from Greece

    Thanks Mixalis.

    ReplyDelete
  2. Peter TranDecember 25, 2015 at 8:33 PM

    Per the result of problem 349 we have GE=RM
    We have BG=BM
    BR=BM-RM
    But BM=BG and RM= EG so BR= BE
    So BE=BR=BT
    And B is the center of circumcircle of triangle ERT
    So central angle ABD= 2 x inscribed angle ETR

    ReplyDelete

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