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Geometry Problem 1304: Triangle, 120 Degrees, Angle Bisector, Incenter, Measurement. Level: School, College, Mathematics Education

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The figure below shows a triangle ABC with the angle B = 120 degrees and incenter I. If AD, BE, and CF are the bisectors of the angles A, B, and C, respectively, prove that AF + CD + 2EI= AC.
 

Geometry Problem 1304: Triangle, 120 Degrees, Angle Bisector, Incenter, Measurement
  
 

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Home | Search | Geometry | Problems | All Problems | Open Problems | Visual Index | 10 Problems | Problems Art Gallery |  Art | 1301-1310 | Triangle | 120 degrees | Angle Bisector | Incenter | Congruence | by Antonio Gutierrez

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