GeoGebra
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GeoGebra
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Jana Skoková
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PIP Feuerbachova kružnica (c) Vozárová, Vandlíková
PIP Napoleonova veta
Points, Lines, and Planes Applet
Parallel, intersecting and Skew Lines
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A lemma for Routh's Theorem
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NY - Alg 1 - Sec 2 - 20 - 1
unit circle
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