Quiz interactif : Maths 3ème année — Nombres, Équations et Géométrie

Question 1 sur 10 10:00

[{"id":26808,"question":"Quel est le résultat de l'opération (-3) + (-5) ?","option_a":"-8","option_b":"-2","option_c":"8","option_d":"2","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'addition de deux nombres négatifs donne un résultat négatif. (-3) + (-5) = -8.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26809,"question":"L'équation 2x - 4 = 0 a pour solution x = 2.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"En résolvant l'équation : 2x - 4 = 0 → 2x = 4 → x = 2. La solution est donc correcte.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26810,"question":"Quel est le volume d'un cube de côté 3 cm ?","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 = côté³. Ici, 3³ = 27 cm³.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26811,"question":"La fonction f(x) = 2x + 3 est une fonction affine.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Une fonction affine s'écrit sous la forme f(x) = ax + b. Ici, a = 2 et b = 3, donc c'est bien une fonction affine.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26812,"question":"Quelle est la solution de l'inéquation x + 5 \u003E 7 ?","option_a":"x \u003E 2","option_b":"x \u003C 2","option_c":"x \u003E 12","option_d":"x \u003C 12","option_e":"","option_f":"","bonne_reponse":"A","explication":"En résolvant l'inéquation : x + 5 \u003E 7 → x \u003E 7 - 5 → x \u003E 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26813,"question":"Le périmètre d'un carré de côté 4 cm est de 16 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 P = 4 × côté. Ici, 4 × 4 = 16 cm. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26814,"question":"Quel est le résultat de 5 × (3 + 2) ?","option_a":"15","option_b":"25","option_c":"10","option_d":"35","option_e":"","option_f":"","bonne_reponse":"B","explication":"En appliquant les règles de priorité : 5 × (3 + 2) = 5 × 5 = 25.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26815,"question":"La médiatrice d'un segment est perpendiculaire à ce segment.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Par définition, la médiatrice d'un segment est une droite perpendiculaire à ce segment et passant par son milieu.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26816,"question":"Quel est le résultat de (-2) × (-4) ?","option_a":"-8","option_b":"8","option_c":"-6","option_d":"6","option_e":"","option_f":"","bonne_reponse":"B","explication":"Le produit de deux nombres négatifs est positif. (-2) × (-4) = 8.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":26817,"question":"La fonction f(x) = x² est une fonction linéaire.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Une fonction linéaire s'écrit sous la forme f(x) = ax. Ici, f(x) = x² est une fonction du second degré, donc ce n'est pas une fonction linéaire.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]