Figures planes - 6e

Droites particulières d'un triangle

Exercice 1 : Construire la médiatrice du côté d'un triangle

Dans le triangle \(ABC\) suivant, tracer la médiatrice du segment \([AB]\).

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Exercice 2 : Construire la hauteur du côté d'un triangle

Dans le triangle \( ABC \) suivant, tracer la hauteur relative au côté \( [AB] \).

{"init": {"range": [[-10, 10], [-10, 10]], "scale": [35, 35]}, "line": [[[-10.0, -10.0], [10.0, -10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -9.0], [10.0, -9.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -8.0], [10.0, -8.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -7.0], [10.0, -7.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -6.0], [10.0, -6.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -5.0], [10.0, -5.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -4.0], [10.0, -4.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -3.0], [10.0, -3.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -2.0], [10.0, -2.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -1.0], [10.0, -1.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 0.0], [10.0, 0.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 1.0], [10.0, 1.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 2.0], [10.0, 2.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 3.0], [10.0, 3.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 4.0], [10.0, 4.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 5.0], [10.0, 5.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 6.0], [10.0, 6.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 7.0], [10.0, 7.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 8.0], [10.0, 8.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 9.0], [10.0, 9.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, 10.0], [10.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-10.0, -10.0], [-10.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-9.0, -10.0], [-9.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-8.0, -10.0], [-8.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-7.0, -10.0], [-7.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-6.0, -10.0], [-6.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-5.0, -10.0], [-5.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-4.0, -10.0], [-4.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-3.0, -10.0], [-3.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-2.0, -10.0], [-2.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-1.0, -10.0], [-1.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[0.0, -10.0], [0.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[1.0, -10.0], [1.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[2.0, -10.0], [2.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[3.0, -10.0], [3.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[4.0, -10.0], [4.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[5.0, -10.0], [5.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[6.0, -10.0], [6.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[7.0, -10.0], [7.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[8.0, -10.0], [8.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[9.0, -10.0], [9.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[10.0, -10.0], [10.0, 10.0], {"subtype": "segment", "stroke": "#ccc"}], [[-1.1, -6.0], [-0.9, -6.0], {}], [[-1.0, -6.1], [-1.0, -5.9], {}], [[5.9, -6.0], [6.1, -6.0], {}], [[6.0, -6.1], [6.0, -5.9], {}], [[4.9, 1.0], [5.1, 1.0], {}], [[5.0, 0.9], [5.0, 1.1], {}], [[-1.0, -6.0], [6.0, -6.0], {"subtype": "segment"}], [[6.0, -6.0], [5.0, 1.0], {"subtype": "segment"}], [[5.0, 1.0], [-1.0, -6.0], {"subtype": "segment"}]], "label": [[[-1.0, -6.0], "A", "below left", {}], [[6.0, -6.0], "B", "below right", {}], [[5.0, 1.0], "C", "above", {}]], "drawing_options": {"tools": ["line"]}}

Exercice 3 : Construire la hauteur (intérieure) du côté d'un triangle

Dans le triangle \( ABC \) suivant, tracer la hauteur relative au côté \( [AB] \).

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Exercice 4 : Construire la hauteur (extérieure) du côté d'un triangle

Dans le triangle \( ABC \) suivant, tracer la hauteur relative au côté \( [AB] \).

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Exercice 5 : Construire la médiane du côté d'un triangle

Dans le triangle \(ABC\) suivant, tracer la médiane du segment \([AB]\).

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