Theorem no. 19

Autor:fersie t. ramirez

theorem no. 19 Three circles whose centers are A, B, C respectively are tangent externally, pair by pair, at D, E, F. Prove that the inscribed circle of the triangle ABC is the circumscribed circle of the triangle DEF.

Nuevos recursos

Position Vector and Derivative Vector
Proving Triangles Similar: Multistep Transformations
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
רישום חופשי

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Cards distribution for probability
trirec1
TaskD
ระบบสมการ
Monotony
Angles of Polygons

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Homotecia
Cubo
Cilindro
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Transformaciones Geométricas