Mathématiques de niveau 3 - Concepts fondamentaux

Question 1 sur 10 10:00

[{"id":8403,"question":"Quel est le résultat de 2x + 5 lorsque x = 3 ?","option_a":"11","option_b":"13","option_c":"15","option_d":"17","option_e":"","option_f":"","bonne_reponse":"A","explication":"2x + 5 = 2*3 + 5 = 6 + 5 = 11","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8404,"question":"L'angle droit est-il supérieur à 90 degrés ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un angle droit est exactement de 90 degrés.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8405,"question":"Quelle est la formule pour calculer la surface d'un rectangle ?","option_a":"Longueur x Largeur","option_b":"Longueur + Largeur","option_c":"Longueur - Largeur","option_d":"Longueur \/ Largeur","option_e":"","option_f":"","bonne_reponse":"A","explication":"La surface d'un rectangle est calculée en multipliant la longueur par la largeur.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8406,"question":"Un triangle isocèle a-t-il deux côtés égaux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un triangle isocèle a deux côtés de même longueur.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8407,"question":"Quel est le résultat de (x + 2)(x - 3) lorsque x = 4 ?","option_a":"2","option_b":"5","option_c":"10","option_d":"14","option_e":"","option_f":"","bonne_reponse":"C","explication":"(4 + 2)(4 - 3) = 6*1 = 6","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8408,"question":"Un cercle a-t-il des angles droits ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un cercle ne possède pas d'angles droits.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8409,"question":"Quelle est la formule pour calculer le volume d'une sphère ?","option_a":"(4\/3)πr^3","option_b":"(2\/3)πr^3","option_c":"(1\/3)πr^3","option_d":"πr^3","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le volume d'une sphère est calculé à l'aide de la formule (4\/3)πr^3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8410,"question":"Un parallélogramme a-t-il des côtés opposés parallèles ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un parallélogramme a des côtés opposés parallèles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8411,"question":"Quel est le résultat de 3x - 2 lorsque x = 5 ?","option_a":"11","option_b":"13","option_c":"15","option_d":"17","option_e":"","option_f":"","bonne_reponse":"B","explication":"3x - 2 = 3*5 - 2 = 15 - 2 = 13","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":8412,"question":"Un triangle rectangle a-t-il un angle droit ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un triangle rectangle a un angle droit.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]