Bonsoir,
Calcul de WD: th de Thalès, on a:
WD/WH= DQ/JH
WD/3.6= 3.6/4.8
4.8 WD= 3.6x3.6
WD= 12.96/4.8
WD= 2.7 cm.
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Bonsoir,
Calcul de WD: th de Thalès, on a:
WD/WH= DQ/JH
WD/3.6= 3.6/4.8
4.8 WD= 3.6x3.6
WD= 12.96/4.8
WD= 2.7 cm.