Quiz interactif : Mathématiques 6ème année — Nombres et géométrie

Question 1 sur 10 10:00

[{"id":64802,"question":"Quel est le résultat de 3,5 × 2 ?","option_a":"5,5","option_b":"6,0","option_c":"7,0","option_d":"8,5","option_e":"","option_f":"","bonne_reponse":"C","explication":"3,5 × 2 = 7,0. Multiplier un nombre décimal par 2 revient à le doubler.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64803,"question":"Un rectangle a une longueur de 8 cm et une largeur de 5 cm. Quel est son périmètre ?","option_a":"13 cm","option_b":"26 cm","option_c":"30 cm","option_d":"40 cm","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le périmètre d'un rectangle se calcule par la formule P = 2 × (Longueur + Largeur) = 2 × (8 + 5) = 26 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64804,"question":"Vrai ou Faux : 1\/2 est supérieur à 2\/3.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"1\/2 = 0,5 et 2\/3 ≈ 0,666. Donc 1\/2 est inférieur à 2\/3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64805,"question":"Quel est le volume d'un cube de 3 cm d'arête ?","option_a":"9 cm³","option_b":"12 cm³","option_c":"27 cm³","option_d":"36 cm³","option_e":"","option_f":"","bonne_reponse":"C","explication":"Le volume d'un cube se calcule par V = arête³ = 3³ = 27 cm³.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64806,"question":"Vrai ou Faux : La somme de deux angles complémentaires est égale à 180°.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Deux angles sont complémentaires si leur somme est égale à 90°, et supplémentaires si elle est égale à 180°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64807,"question":"Quel est le résultat de 45 ÷ 5 ?","option_a":"7","option_b":"8","option_c":"9","option_d":"10","option_e":"","option_f":"","bonne_reponse":"C","explication":"45 ÷ 5 = 9. Diviser 45 par 5 donne 9.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64808,"question":"Un triangle rectangle a des côtés de 3 cm, 4 cm et 5 cm. Quelle est l'aire de ce triangle ?","option_a":"6 cm²","option_b":"12 cm²","option_c":"15 cm²","option_d":"20 cm²","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un triangle rectangle se calcule par (base × hauteur) \/ 2 = (3 × 4) \/ 2 = 6 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64809,"question":"Vrai ou Faux : 0,75 est égal à 3\/4.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"0,75 = 75\/100 = 3\/4 après simplification.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64810,"question":"Quel est le résultat de 7 × (3 + 2) ?","option_a":"25","option_b":"35","option_c":"40","option_d":"50","option_e":"","option_f":"","bonne_reponse":"B","explication":"D'après les règles de priorité, on calcule d'abord la parenthèse : 3 + 2 = 5, puis 7 × 5 = 35.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":64811,"question":"Vrai ou Faux : Un parallélogramme a toujours quatre angles droits.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Un parallélogramme a des angles opposés égaux, mais pas nécessairement droits. Seul le rectangle (cas particulier) a quatre angles droits.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]