Aire du triangle isocèle = 22.50cm² Un peu plus sur le triangle Un triangle isocèle possède deux côtés qui ont la même longueur, habituellement plus grande que la longueur de la base de ce triangle. Son aire Rappel sur les Propriétés des Triangles Rectangles, Isocèles, Equilatéral Base (b) = 12 cm. Tous les angles sont égaux et font 60°.Copyright © 2007 - 2020, Tout Calculer, tous droits reservés. Calculer l'aire d'un triangle isocèle en utilisant les mesures des côtés{"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/9\/90\/Find-the-Area-of-an-Isosceles-Triangle-Step-1-Version-3.jpg\/v4-460px-Find-the-Area-of-an-Isosceles-Triangle-Step-1-Version-3.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/9\/90\/Find-the-Area-of-an-Isosceles-Triangle-Step-1-Version-3.jpg\/v4-728px-Find-the-Area-of-an-Isosceles-Triangle-Step-1-Version-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"
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