18.01.18 – TACTIQUES

Atrium

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Atrium = √7H

Si H = (28 + 3.6) = 31.6
l = √ (7 × 31.6) = 14.8727 m.
x / (1.35 × 2) = 5.5 trames
l = 6 × 2.7 = 16.2 m.