inscribed circle centers of tangent circles

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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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Enlargements
Triangle Inequalities Exploration
Percent Visualization
Untitled
Graduatoria Bio
Rolling a circle to find pi

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正切函數
函數圖形
外接圓
三角函數
橢圓

inscribed circle centers of tangent circles

ב1 עמוד 368 תרגיל 25

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