Quiz : Algèbre et géométrie — 7ème année de base

Question 1 sur 10 10:00

[{"id":53991,"question":"Quelle est la solution de l'équation 3x + 5 = 20 ?","option_a":"x = 5","option_b":"x = 15","option_c":"x = 7","option_d":"x = 4","option_e":"","option_f":"","bonne_reponse":"A","explication":"Soustraire 5 des deux côtés donne 3x = 15, puis diviser par 3 donne x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53992,"question":"Un triangle rectangle a un angle de 30°. Quel est la mesure du troisième angle ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"La somme des angles d'un triangle est 180°. Si deux angles sont 90° et 30°, le troisième est 60°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53993,"question":"Calculez l'aire d'un rectangle de longueur 8 cm et de largeur 5 cm.","option_a":"40 cm²","option_b":"30 cm²","option_c":"13 cm²","option_d":"26 cm²","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un rectangle est calculée par longueur × largeur, soit 8 × 5 = 40 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53994,"question":"La fraction 12\/18 est-elle simplifiable ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"12\/18 peut être simplifiée par 6, ce qui donne 2\/3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53995,"question":"Quelle est la valeur de x dans l'équation 2x - 7 = 11 ?","option_a":"x = 9","option_b":"x = 18","option_c":"x = 4","option_d":"x = 12","option_e":"","option_f":"","bonne_reponse":"A","explication":"Ajouter 7 des deux côtés donne 2x = 18, puis diviser par 2 donne x = 9.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53996,"question":"Un carré a un côté de 4 cm. Quel est son périmètre ?","option_a":"16 cm","option_b":"8 cm","option_c":"12 cm","option_d":"20 cm","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le périmètre d'un carré est 4 × côté, soit 4 × 4 = 16 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53997,"question":"La somme de deux angles complémentaires est toujours égale à 180°.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Deux angles complémentaires ont une somme de 90°. Deux angles supplémentaires ont une somme de 180°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53998,"question":"Résolvez l'équation : 5(x - 2) = 25.","option_a":"x = 7","option_b":"x = 3","option_c":"x = 12","option_d":"x = 5","option_e":"","option_f":"","bonne_reponse":"A","explication":"Diviser par 5 donne x - 2 = 5, puis ajouter 2 donne x = 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":53999,"question":"Un triangle isocèle a deux angles égaux à 45°. Quelle est la mesure du troisième angle ?","option_a":"90°","option_b":"45°","option_c":"60°","option_d":"180°","option_e":"","option_f":"","bonne_reponse":"A","explication":"La somme des angles est 180°. Deux angles de 45° donnent 90°, donc le troisième est 90°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":54000,"question":"Calculez le périmètre d'un triangle équilatéral de côté 6 cm.","option_a":"18 cm","option_b":"12 cm","option_c":"24 cm","option_d":"6 cm","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un triangle équilatéral a trois côtés égaux. Le périmètre est 3 × 6 = 18 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]