Quiz : Les bases de l'algèbre et de la géométrie — 1ère année secondaire

Question 1 sur 5 10:00

[{"id":2105,"question":"Quelle est la solution de l'équation 3x + 5 = 20 ?","option_a":"x = 5","option_b":"x = 15","option_c":"x = 4","option_d":"x = 2","option_e":"","option_f":"","bonne_reponse":"A","explication":"Pour résoudre 3x + 5 = 20, soustrayez 5 des deux côtés : 3x = 15. Divisez ensuite par 3 : x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2106,"question":"Quel est le périmètre d'un rectangle de longueur 8 cm et de largeur 5 cm ?","option_a":"26 cm","option_b":"40 cm","option_c":"13 cm","option_d":"30 cm","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le périmètre d'un rectangle se calcule avec la formule P = 2 × (longueur + largeur). Ici, P = 2 × (8 + 5) = 26 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2107,"question":"Quelle est la valeur de x dans l'inéquation 2x - 7 \u003C 3 ?","option_a":"x \u003C 5","option_b":"x \u003E 5","option_c":"x ≤ 5","option_d":"x ≥ 5","option_e":"","option_f":"","bonne_reponse":"A","explication":"Ajoutez 7 des deux côtés : 2x \u003C 10. Divisez par 2 : x \u003C 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2108,"question":"Quelle est l'aire d'un triangle de base 6 cm et de hauteur 4 cm ?","option_a":"12 cm²","option_b":"24 cm²","option_c":"10 cm²","option_d":"8 cm²","option_e":"","option_f":"","bonne_reponse":"A","explication":"L'aire d'un triangle se calcule avec la formule A = (base × hauteur) \/ 2. Ici, A = (6 × 4) \/ 2 = 12 cm².","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":2109,"question":"Quel est le résultat de (2x + 3)(x - 1) ?","option_a":"2x² + x - 3","option_b":"2x² + 5x - 3","option_c":"2x² - x + 3","option_d":"2x² + x + 3","option_e":"","option_f":"","bonne_reponse":"A","explication":"Développez en utilisant la distributivité : (2x × x) + (2x × -1) + (3 × x) + (3 × -1) = 2x² - 2x + 3x - 3 = 2x² + x - 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]