bonjour
aire triangle = ( B * h ) / 2
12 = ( 6 h ) / 2
12 = 3 h
h = 4
hauteur = 4 cm
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bonjour
aire triangle = ( B * h ) / 2
12 = ( 6 h ) / 2
12 = 3 h
h = 4
hauteur = 4 cm