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Trigonométrie - Rapports dans un triangle rectangle
[size=150]Adapté de l'activité [color=#0000ff][url=https://www.geogebra.org/m/jzGnCJqj]3-trigo[/url][/color] de [color=#0000ff][url=https://www.geogebra.org/u/brunoserres33]bruno serres[/url][/color][/size]