Bonjour
Cos55 = FE/6
FE = 6 * cos 55 = ≈ 3.44 cm
cos 70 = 2.5 / NB
NB = ≈ 7.31 cm
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Bonjour
Cos55 = FE/6
FE = 6 * cos 55 = ≈ 3.44 cm
cos 70 = 2.5 / NB
NB = ≈ 7.31 cm