Quiz Mathématiques : 7ème année — Série P-EX08-17-CM

Question 1 sur 10 10:00

[{"id":39995,"question":"Quel est le résultat de l'opération : 7 × (5 + 3) ?","option_a":"40","option_b":"56","option_c":"35","option_d":"28","option_e":"","option_f":"","bonne_reponse":"B","explication":"Appliquez la règle de priorité : d'abord la parenthèse (5+3=8), puis la multiplication 7×8=56.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":39996,"question":"Un carré a un côté de 5 cm. Son périmètre est-il égal à 20 cm ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le périmètre d'un carré se calcule par 4 × côté = 4×5=20 cm. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":39997,"question":"Quelle est la fraction irréductible de 18\/24 ?","option_a":"3\/4","option_b":"9\/12","option_c":"6\/8","option_d":"2\/3","option_e":"","option_f":"","bonne_reponse":"A","explication":"Simplifiez 18\/24 en divisant numérateur et dénominateur par 6 : 18÷6=3 et 24÷6=4 → 3\/4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":39998,"question":"Si un triangle a des côtés de 3 cm, 4 cm et 5 cm, est-il rectangle ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Vérifiez le théorème de Pythagore : 3² + 4² = 9 + 16 = 25 = 5². Le triangle est donc rectangle.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":39999,"question":"Quel est le résultat de 15 − (8 + 2) ?","option_a":"5","option_b":"10","option_c":"7","option_d":"12","option_e":"","option_f":"","bonne_reponse":"A","explication":"Calculez d'abord la parenthèse : 8+2=10, puis soustrayez : 15−10=5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":40000,"question":"L'aire d'un rectangle de 6 cm de longueur et 4 cm de largeur est-elle de 24 cm² ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire se calcule par longueur × largeur = 6×4=24 cm². L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":40001,"question":"Quelle est la valeur de x dans l'équation : 2x + 5 = 11 ?","option_a":"x=3","option_b":"x=4","option_c":"x=5","option_d":"x=6","option_e":"","option_f":"","bonne_reponse":"A","explication":"Résolvez l'équation : 2x = 11−5 → 2x=6 → x=6÷2=3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":40002,"question":"Un cercle a un rayon de 3 cm. Son aire est-elle de 9π cm² ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un cercle se calcule par πr² = π×3²=9π cm². L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":40003,"question":"Quel est le résultat de 4² + 3³ ?","option_a":"25","option_b":"43","option_c":"31","option_d":"14","option_e":"","option_f":"","bonne_reponse":"B","explication":"Calculez les puissances : 4²=16 et 3³=27, puis additionnez : 16+27=43.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":40004,"question":"Si un angle mesure 90°, est-il aigu ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un angle est aigu s'il mesure moins de 90°. Un angle de 90° est droit.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]