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[{"id":5162,"question":"Quelle est la solution de l'équation 3x + 5 = 20 ?","option_a":"x = 5","option_b":"x = 15","option_c":"x = 10","option_d":"x = 7","option_e":"","option_f":"","bonne_reponse":"A","explication":"Pour résoudre 3x + 5 = 20, soustrayez d'abord 5 des deux côtés : 3x = 15. Puis divisez par 3 : x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5163,"question":"Le théorème de Pythagore s'applique-t-il à tous les triangles ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le théorème de Pythagore ne s'applique qu'aux triangles rectangles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5164,"question":"Quelle est la valeur de 2³ × 2² ?","option_a":"2⁵","option_b":"2⁶","option_c":"4⁵","option_d":"8²","option_e":"","option_f":"","bonne_reponse":"A","explication":"Lorsqu'on multiplie des puissances de même base, on additionne les exposants : 2³ × 2² = 2^(3+2) = 2⁵.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5165,"question":"Un angle de 90° est-il un angle aigu ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un angle aigu mesure moins de 90°. Un angle de 90° est un angle droit.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5166,"question":"Quelle est l'aire d'un rectangle de longueur 8 cm et de largeur 5 cm ?","option_a":"40 cm²","option_b":"26 cm²","option_c":"13 cm²","option_d":"16 cm²","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un rectangle se calcule avec la formule : longueur × largeur. Ici, 8 × 5 = 40 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5167,"question":"La fraction 3\/4 est-elle équivalente à 0,75 ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"3\/4 = 0,75, car 3 divisé par 4 donne 0,75.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5168,"question":"Quelle est la solution de l'inéquation 2x - 7 \u003E 3 ?","option_a":"x \u003E 5","option_b":"x \u003E 10","option_c":"x \u003C 5","option_d":"x = 5","option_e":"","option_f":"","bonne_reponse":"A","explication":"Ajoutez 7 des deux côtés : 2x \u003E 10. Puis divisez par 2 : x \u003E 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5169,"question":"Un parallélogramme a-t-il toujours des diagonales de même longueur ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Seuls les rectangles (un type de parallélogramme) ont des diagonales de même longueur.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5170,"question":"Quelle est la valeur de (-3)² ?","option_a":"-9","option_b":"9","option_c":"6","option_d":"-6","option_e":"","option_f":"","bonne_reponse":"B","explication":"(-3)² = (-3) × (-3) = 9, car le carré d'un nombre négatif est positif.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":5171,"question":"La somme des angles d'un triangle est-elle toujours égale à 180° ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Dans un triangle, la somme des trois angles est toujours égale à 180°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]