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
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Đào Thanh Oai —

 
Resource Type
Activity
Tags
collinear  concurrent  midpont  perpective  reflections  theorem 
Target Group (Age)
19+
Language
English (United States)
 
 
GeoGebra version
4.2
Views
1017
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License
CC-BY-SA, GeoGebra Terms of Use
 
 
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