1÷2 × 4 × 18 × 8÷9= 2×2×8=32
= ¹/₂ · 4 · 18 · ⁸/₉ = 2 · 8 · 2 = 32
32
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1÷2 × 4 × 18 × 8÷9= 2×2×8=32
S = ¹/₂ · d₁ · d₂ · sin(α) =
= ¹/₂ · 4 · 18 · ⁸/₉ = 2 · 8 · 2 = 32
Ответ
32