inscribed circle centers of tangent circles

ב1 עמוד 368 תרגיל 25

use scroll bar to unfold problem. what is the relation between points D, E, F and the inscribed circle in triangle ABC? points A, B, C and D can all be moved around. try it.

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רישום חופשי
The Datasaurus Dozen
Slope Between 2 Points (Phase 2)
Untitled
Prism Drawn in 2-Point Perspective

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Step Six
Two Tangents Theorem
Two lines cut by a transversal
Consecutive Interior angle (SUPPLEMENTARY)
Properties of a Square

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Disequazioni
Funzioni lineari
Parallelogrammi
Dilatazione
Volume