Four circle and a triangle problems

A triangle and Four circle problems. Let ABC be a triangle, and any two circle, construct three circle tangent two sides and tangent circle respectively at A1,B1,C1. Prove that AA1,BB1,CC1 are concurrent

 

Đào Thanh Oai

 
Material Type
Activity
Tags
perpective  collinear  concurrent  theorem  midpont  reflections 
Target Group (Age)
19+
Language
English (United States)
 
 
GeoGebra version
4.2
Views
935
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