Feuerbach's Theorem

Author:kmack328, V8frr

Feuerbach's theorem, which states that the nine-point circle is tangent to the three excircles of the triangle as well as its incircle. Drag A, B and C to see that this reamins invariable for any triangle.

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Silhouettes
Free fall
Rolling Triangle
Floch, fractal, iteration, custom tool.
Positive and Negative Space

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Funzioni seno, coseo e tangente
Forum_37143_A_AutoZoom01
M3L9 challenge 1
chapter one
Coil
String sphere

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Angles
Stochastic Process or Random Process
Incircle or Inscribed Circle
Arithmetic
Histogram