Quiz : Les fondamentaux de Maths pour la 9ème année

Question 1 sur 10 10:00

[{"id":48751,"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 = 25","option_e":"","option_f":"","bonne_reponse":"A","explication":"Soustraire 5 des deux côtés : 3x = 15. Diviser par 3 : x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48752,"question":"Vrai ou Faux ? Le périmètre d'un rectangle de longueur L et de largeur l est donné par P = 2(L + l).","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Cette formule est correcte : P = 2L + 2l = 2(L + l).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48753,"question":"Quel est le résultat de 4² + 3 × 2 ?","option_a":"22","option_b":"26","option_c":"14","option_d":"11","option_e":"","option_f":"","bonne_reponse":"B","explication":"Calculer 4² = 16, puis 3 × 2 = 6. Additionner : 16 + 6 = 22.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48754,"question":"Vrai ou Faux ? Deux droites parallèles forment toujours des angles alternes-internes égaux.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"C'est une propriété fondamentale des droites parallèles coupées par une sécante.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48755,"question":"Résoudre l'équation 2(x - 3) = 4x + 1.","option_a":"x = -7\/2","option_b":"x = -3","option_c":"x = 7\/2","option_d":"x = 3","option_e":"","option_f":"","bonne_reponse":"A","explication":"Développer : 2x - 6 = 4x + 1. Soustraire 2x : -6 = 2x + 1. Soustraire 1 : -7 = 2x. Diviser par 2 : x = -7\/2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48756,"question":"Quel est l'aire d'un triangle de base 8 cm et de hauteur 5 cm ?","option_a":"20 cm²","option_b":"40 cm²","option_c":"13 cm²","option_d":"16 cm²","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un triangle est (base × hauteur) \/ 2 = (8 × 5) \/ 2 = 20 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48757,"question":"Vrai ou Faux ? Le nombre 0 est un nombre premier.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un nombre premier a exactement deux diviseurs : 1 et lui-même. 0 n'est divisible que par lui-même.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48758,"question":"Quelle est la valeur de x dans l'équation 5x - 10 = 0 ?","option_a":"x = 2","option_b":"x = -2","option_c":"x = 10","option_d":"x = 5","option_e":"","option_f":"","bonne_reponse":"A","explication":"Ajouter 10 : 5x = 10. Diviser par 5 : x = 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48759,"question":"Quel est le périmètre d'un carré de côté 6 cm ?","option_a":"12 cm","option_b":"24 cm","option_c":"36 cm","option_d":"6 cm","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le périmètre d'un carré est 4 × côté = 4 × 6 = 24 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":48760,"question":"Vrai ou Faux ? La somme des angles d'un triangle est toujours égale à 180 degrés.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"C'est une propriété géométrique fondamentale des triangles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]