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494 = 38 x d2 x 1/2
494 = 19 x d2
d2 = 494/19
d2 = 26
maaf
Luas = 494 dm²
Dit : diagonal₂ = ?
Jawab :
Luas = d₁ x d₂
2
494 = 38 x d₂
2
494 x 2 = 38 x d₂
988 = 38 x d₂
988 = d₂
38
26 = d₂