1 construit un rectangle abcd de centre I tel que AB = 7,5 cm et ABD = 35° 2 que peut on dire des angles DBC et ABD ?
B donne la mesure de l'angle DBC . Justifier





3 determiner la mesure de langle BCD . justifier


4 citer un angle ayant la meme mesure que l'angle BIC . Justifier la reponse
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