экза мен / экзамен / 5. Озера и озёрно-речные системы / Марфаметрычныя паказчыкі

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7 = l / (2v f0 ?)

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V = h/3 (f1 + f2 = vf1 f2),

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V = h/2 (f1 + f2 )

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