The Feuerbach Point

Autore:Steve Phelps

Construct the incircle and the three excircles of a triangle. The nine-point circle is tangent to all four circles. The point of tangency of the nine-point circle and the incircle is the Feuerbach Point.

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The Red Chair
Nikmati Keunggulan Di Bandar Judi Terpercaya
apec
畫三角形

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Rainbow Formation
eratos NN
Newton Raphson
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Prisma
Simmetrie
Circonferenza unitaria
Algebra
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