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Javascript Version

Theorem on Common Tangents of 3 Circles

Given three circles, A B and C, We create the intersections between their exterior common tangents K, E and H. We also draw the line through K and E.

Notice that the third common tangent H lies on this line.

 

 

 

 

 

 

 

 

 

 

 

 

 

If you are interested in this applet, you may like our Interactive Symbolic Geometry software Geometry Expressions.