angelinaalrashid angelinaalrashid

05-01-2024
Mathematics

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Soit ABC un triangle isocèle en A tel que BC = 3 cm et B A = 4 cm. 1. Construire le triangle ABC. 2. Construire le symétrique de ABC par rapport à A (D est le symétrique de B et E celui de C). 3. Justifier que EDCB est un parallélogramme. 4. Quelle est la longueur du segment [ED]? Justifier.

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