Quiz : Algèbre et Géométrie — 1ère année secondaire

Question 1 sur 10 10:00

[{"id":15848,"question":"Quelle est la solution de l'équation 3x - 5 = 10 ?","option_a":"x = 5","option_b":"x = 15\/3","option_c":"x = 5\/3","option_d":"x = 15","option_e":"","option_f":"","bonne_reponse":"A","explication":"La solution est obtenue en isolant x : 3x = 10 + 5 → 3x = 15 → x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15849,"question":"Le théorème de Pythagore s'applique uniquement aux triangles rectangles.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le théorème de Pythagore est valable uniquement pour les triangles rectangles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15850,"question":"Simplifiez l'expression : 2(3x + 4) - 5x.","option_a":"x + 8","option_b":"x - 8","option_c":"6x + 8","option_d":"x + 2","option_e":"","option_f":"","bonne_reponse":"A","explication":"2(3x + 4) = 6x + 8, puis 6x + 8 - 5x = x + 8.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15851,"question":"Si deux droites sont parallèles, alors elles ont le même coefficient directeur.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Deux droites parallèles ont le même coefficient directeur, car elles ne se coupent jamais.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15852,"question":"Résolvez l'inéquation : 2x + 3 \u003E 7.","option_a":"x \u003E 2","option_b":"x \u003C 2","option_c":"x \u003E -2","option_d":"x \u003C -2","option_e":"","option_f":"","bonne_reponse":"A","explication":"2x \u003E 7 - 3 → 2x \u003E 4 → x \u003E 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15853,"question":"Le théorème de Thalès s'applique dans un triangle si une droite est parallèle à l'un de ses côtés.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le théorème de Thalès exige qu'une droite soit parallèle à l'un des côtés du triangle pour diviser les autres côtés proportionnellement.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15854,"question":"Calculez la valeur de x dans l'équation : 4(x - 2) = 2x + 6.","option_a":"x = 7","option_b":"x = 5","option_c":"x = 3","option_d":"x = 1","option_e":"","option_f":"","bonne_reponse":"A","explication":"4x - 8 = 2x + 6 → 2x = 14 → x = 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15855,"question":"Deux angles opposés par le sommet sont toujours égaux.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Les angles opposés par le sommet sont toujours égaux, car ils partagent le même sommet et leurs côtés sont des prolongements l'un de l'autre.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15856,"question":"Développez et réduisez : (x + 3)(x - 2).","option_a":"x² + x - 6","option_b":"x² - x + 6","option_c":"x² + 5x - 6","option_d":"x² - x - 6","option_e":"","option_f":"","bonne_reponse":"A","explication":"x² - 2x + 3x - 6 = x² + x - 6.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15857,"question":"La somme des angles d'un triangle est toujours égale à 180°.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"La somme des angles internes d'un triangle est toujours égale à 180°, quelle que soit sa forme.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]