Quiz — 692f45daef8df_corrigéé 2 devoir 3ème.pdf

Question 1 sur 10 20:00

[{"id":14739,"question":"Quelle est la solution de l'équation 3x - 5 = 10 ?","option_a":"x = 5","option_b":"x = 15","option_c":"x = 5\/3","option_d":"x = 3","option_e":"","option_f":"","bonne_reponse":"a","explication":"Pour résoudre 3x - 5 = 10, on ajoute d'abord 5 des deux côtés : 3x = 15, puis on divise par 3 : x = 5.","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 = 5\", \"b\": \"x = 15\", \"c\": \"x = 5\/3\", \"d\": \"x = 3\"}}","_debug_options_count":4},{"id":14740,"question":"Le théorème de Pythagore s'applique uniquement aux triangles rectangles.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le théorème de Pythagore est valable uniquement pour les triangles rectangles, où le carré de l'hypoténuse est égal à la somme des carrés des deux autres côtés.","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":14741,"question":"Quelle est l'image de 4 par la fonction f(x) = 2x + 1 ?","option_a":"f(4) = 9","option_b":"f(4) = 8","option_c":"f(4) = 7","option_d":"f(4) = 5","option_e":"","option_f":"","bonne_reponse":"a","explication":"En remplaçant x par 4 dans f(x) = 2x + 1, on obtient f(4) = 2*4 + 1 = 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\": \"f(4) = 9\", \"b\": \"f(4) = 8\", \"c\": \"f(4) = 7\", \"d\": \"f(4) = 5\"}}","_debug_options_count":4},{"id":14742,"question":"L'aire d'un cercle de rayon r est donnée par la formule :","option_a":"πr²","option_b":"2πr","option_c":"πr","option_d":"4πr²","option_e":"","option_f":"","bonne_reponse":"a","explication":"La formule de l'aire d'un cercle est A = πr², où r est le rayon du cercle.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"πr²\", \"b\": \"2πr\", \"c\": \"πr\", \"d\": \"4πr²\"}}","_debug_options_count":4},{"id":14743,"question":"Si deux droites sont parallèles, leurs coefficients directeurs sont égaux.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Deux droites parallèles ont le même coefficient directeur, car elles ne se croisent jamais et ont la même pente.","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":14744,"question":"Résoudre l'inéquation : 2x + 3 \u003E 7","option_a":"x \u003E 2","option_b":"x \u003C 2","option_c":"x \u003E 5","option_d":"x \u003C 5","option_e":"","option_f":"","bonne_reponse":"a","explication":"Pour résoudre 2x + 3 \u003E 7, on soustrait 3 : 2x \u003E 4, puis on divise par 2 : x \u003E 2.","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 \u003E 2\", \"b\": \"x \u003C 2\", \"c\": \"x \u003E 5\", \"d\": \"x \u003C 5\"}}","_debug_options_count":4},{"id":14745,"question":"Quelle est la nature du triangle dont les côtés mesurent 5 cm, 12 cm et 13 cm ?","option_a":"Équilatéral","option_b":"Isocèle","option_c":"Rectangle","option_d":"Quelconque","option_e":"","option_f":"","bonne_reponse":"c","explication":"Un triangle est rectangle si le carré du plus grand côté est égal à la somme des carrés des deux autres côtés : 13² = 5² + 12² (169 = 25 + 144).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"Équilatéral\", \"b\": \"Isocèle\", \"c\": \"Rectangle\", \"d\": \"Quelconq","_debug_options_count":4},{"id":14746,"question":"La médiane d'un triangle est une droite qui passe par un sommet et le milieu du côté opposé.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Une médiane d'un triangle est une droite qui relie un sommet au milieu du côté opposé. Elle divise le triangle en deux aires égales.","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":14747,"question":"Quelle est la solution de l'équation x² - 9 = 0 ?","option_a":"x = 3","option_b":"x = -3","option_c":"x = 3 ou x = -3","option_d":"x = 0","option_e":"","option_f":"","bonne_reponse":"c","explication":"L'équation x² - 9 = 0 peut s'écrire x² = 9, donc x = 3 ou x = -3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"x = 3\", \"b\": \"x = -3\", \"c\": \"x = 3 ou x = -3\", \"d\": \"x = 0\"}}","_debug_options_count":4},{"id":14748,"question":"Le volume d'un cylindre de rayon r et de hauteur h est donné par :","option_a":"πr²h","option_b":"2πrh","option_c":"πr²","option_d":"4\/3πr³","option_e":"","option_f":"","bonne_reponse":"a","explication":"Le volume d'un cylindre est V = πr²h, où r est le rayon de la base et h la hauteur.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"πr²h\", \"b\": \"2πrh\", \"c\": \"πr²\", \"d\": \"4\/3πr³\"}}","_debug_options_count":4}]