Bonjour,
affirmation 1 vraie car 65² + 72² = 9 409 = 97²
affirmation 2 vraie car Cos angle CAH = AH/AC = 5/6
donc angle CAH = Cos ⁻¹ (5/6) ≅ 34°
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Bonjour,
affirmation 1 vraie car 65² + 72² = 9 409 = 97²
affirmation 2 vraie car Cos angle CAH = AH/AC = 5/6
donc angle CAH = Cos ⁻¹ (5/6) ≅ 34°