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Dynamic Geometry: Apollonius' Tangency Problem For Three Circles, step-by-step. HTML5 Animation for Mobile Devices. Click the Next button below to start the step-by-step illustration.

Given three fixed circles, find a circle tangent to all three. The eight solutions are illustrated below.
Click the Next button below to browse through the 10 steps.

Apollonius of Perga 262BC - 190BC, Greek mathematician of the Alexandrian school, made historical contributions to mathematics, astronomy and ballistics. His famous book Conics introduced the terms parabola, ellipse and hyperbola. According to Pappus, the Apollonian problem was included in his treatise De Tactionibus ("About Tangencies").
  

Static Geometry: Apollonius' Tangency Problem For Three Circles.

Apollonius' Tangency Problem For Three Circles

 

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Last update Jun 30, 2016 by Antonio Gutierrez