Geometry Constructions
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Barry Sanders  
Constructions made using the Geometer's Sketchpad: Malfatti Circles (construct 3 circles internal to any triangle, each circle being externally tangent to the other two, and each touching adjacent sides of the triangle); Hart Circle (construct the circle which touches the 4 incircles of 3 given overlapping circles); Apollonius Circles (given any combination of 3 points, lines or circles, draw a circle that is tangent to each).  


Levels:  High School (912) 
Languages:  English 
Resource Types:  Problems/Puzzles, Documents/Sketches/Galleries, Geometer's Sketchpad 
Math Topics:  Conic Sections and Circles, Constructions 
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