Feuerbach's Theorem

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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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apec
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

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Chapter 5 Sec 1-4 Quiz #5 Zailee Bran
parallel_transversal
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