Quiz — ds80809.pdf

Question 1 sur 10 20:00

[{"id":49715,"question":"Quel est le résultat de l'opération (-5) + (+3) ?","option_a":"-8","option_b":"-2","option_c":"2","option_d":"8","option_e":"","option_f":"","bonne_reponse":"b","explication":"La somme de -5 et +3 donne -2, car on recule de 5 unités sur la droite numérique puis on avance de 3 unités.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"-8\", \"b\": \"-2\", \"c\": \"2\", \"d\": \"8\"}}","_debug_options_count":4},{"id":49716,"question":"Un triangle isocèle a deux angles égaux à 70°. Quelle est la mesure du troisième angle ?","option_a":"40°","option_b":"50°","option_c":"60°","option_d":"70°","option_e":"","option_f":"","bonne_reponse":"a","explication":"La somme des angles d'un triangle est 180°. Donc 180° - (70° + 70°) = 40°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"40°\", \"b\": \"50°\", \"c\": \"60°\", \"d\": \"70°\"}}","_debug_options_count":4},{"id":49717,"question":"Vrai ou Faux : 3x + 5 = 20 est une équation du premier degré.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"C'est une équation du premier degré car l'inconnue x est à la puissance 1.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":49718,"question":"Quelle est la formule de l'aire d'un rectangle de longueur L et de largeur l ?","option_a":"L + l","option_b":"2(L + l)","option_c":"L × l","option_d":"L² + l²","option_e":"","option_f":"","bonne_reponse":"c","explication":"L'aire d'un rectangle se calcule en multipliant sa longueur par sa largeur : A = L × l.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"L + l\", \"b\": \"2(L + l)\", \"c\": \"L × l\", \"d\": \"L² + l²\"}}","_debug_options_count":4},{"id":49719,"question":"Vrai ou Faux : 15% de 200 est égal à 30.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"15% de 200 = (15\/100) × 200 = 30. L'affirmation est donc vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":49720,"question":"Résoudre l'équation : 2x - 7 = 11","option_a":"x = 9","option_b":"x = 4","option_c":"x = 18","option_d":"x = 2","option_e":"","option_f":"","bonne_reponse":"a","explication":"2x = 11 + 7 → 2x = 18 → x = 9.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"x = 9\", \"b\": \"x = 4\", \"c\": \"x = 18\", \"d\": \"x = 2\"}}","_debug_options_count":4},{"id":49721,"question":"Quelle est la nature d'un quadrilatère ayant deux côtés parallèles et deux côtés non parallèles ?","option_a":"Carré","option_b":"Rectangle","option_c":"Trapèze","option_d":"Losange","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un quadrilatère avec deux côtés parallèles est un trapèze.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Carré\", \"b\": \"Rectangle\", \"c\": \"Trapèze\", \"d\": \"Losange\"}}","_debug_options_count":4},{"id":49722,"question":"Vrai ou Faux : Le périmètre d'un cercle se calcule avec la formule P = π × r.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le périmètre d'un cercle est P = 2πr (ou P = πd, avec d le diamètre).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":49723,"question":"Quel est le résultat de 0,75 × 4 ?","option_a":"0,3","option_b":"3","option_c":"30","option_d":"0,03","option_e":"","option_f":"","bonne_reponse":"b","explication":"0,75 × 4 = 3, car 0,75 est égal à 3\/4 et 3\/4 × 4 = 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"0,3\", \"b\": \"3\", \"c\": \"30\", \"d\": \"0,03\"}}","_debug_options_count":4},{"id":49724,"question":"Quelle est la valeur de x dans l'inéquation : 3x + 2 ≤ 14 ?","option_a":"x ≤ 4","option_b":"x ≥ 4","option_c":"x ≤ 12","option_d":"x ≤ 16","option_e":"","option_f":"","bonne_reponse":"a","explication":"3x ≤ 12 → x ≤ 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"x ≤ 4\", \"b\": \"x ≥ 4\", \"c\": \"x ≤ 12\", \"d\": \"x ≤ 16\"}}","_debug_options_count":4}]