Quiz — devoir-de-contrôle-n°3--2017-2018(mr-mejri-chokri).pdf

Question 1 sur 10 20:00

[{"id":26424,"question":"Quelle est la valeur de sin(30°) ?","option_a":"A. 0","option_b":"B. 1\/2","option_c":"C. √2\/2","option_d":"D. 1","option_e":"","option_f":"","bonne_reponse":"b","explication":"La valeur de sin(30°) est 1\/2, une valeur fondamentale en trigonométrie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. 0\", \"b\": \"B. 1\/2\", \"c\": \"C. √2\/2\", \"d\": \"D. 1\"}}","_debug_options_count":4},{"id":26425,"question":"Dans un triangle rectangle, le carré de l'hypoténuse est égal à la somme des carrés des deux autres côtés.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"C'est le théorème de Pythagore, une propriété essentielle en géométrie.","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":26426,"question":"Quelle est la formule de l'aire d'un triangle ?","option_a":"A. base × hauteur","option_b":"B. (base × hauteur) \/ 2","option_c":"C. π × rayon²","option_d":"D. côté²","option_e":"","option_f":"","bonne_reponse":"b","explication":"L'aire d'un triangle se calcule avec la formule (base × hauteur) \/ 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. base × hauteur\", \"b\": \"B. (base × hauteur) \/ 2\", \"c\": \"C. π","_debug_options_count":4},{"id":26427,"question":"La tangente d'un angle est toujours positive dans le premier quadrant.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La tangente est positive dans le premier et le troisième quadrant.","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":26428,"question":"Quelle est la valeur de cos(60°) ?","option_a":"A. 0","option_b":"B. 1\/2","option_c":"C. √3\/2","option_d":"D. 1","option_e":"","option_f":"","bonne_reponse":"b","explication":"La valeur de cos(60°) est 1\/2, une valeur clé en trigonométrie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. 0\", \"b\": \"B. 1\/2\", \"c\": \"C. √3\/2\", \"d\": \"D. 1\"}}","_debug_options_count":4},{"id":26429,"question":"Le théorème de Thalès s'applique uniquement aux triangles isocèles.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le théorème de Thalès s'applique à tous les triangles, quelle que soit leur forme.","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":26430,"question":"Quelle est la formule de la circonférence d'un cercle ?","option_a":"A. π × rayon","option_b":"B. 2 × π × rayon","option_c":"C. π × rayon²","option_d":"D. 4 × π × rayon²","option_e":"","option_f":"","bonne_reponse":"b","explication":"La circonférence d'un cercle se calcule avec la formule 2 × π × rayon.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"A. π × rayon\", \"b\": \"B. 2 × π × rayon\", \"c\": \"C. π × rayon","_debug_options_count":4},{"id":26431,"question":"La somme des angles d'un triangle est toujours égale à 180°.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La somme des angles d'un triangle est toujours égale à 180°, une propriété fondamentale.","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":26432,"question":"Quelle est la valeur de tan(45°) ?","option_a":"A. 0","option_b":"B. 1\/2","option_c":"C. 1","option_d":"D. √3","option_e":"","option_f":"","bonne_reponse":"c","explication":"La valeur de tan(45°) est 1, car sin(45°) = cos(45°).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"A. 0\", \"b\": \"B. 1\/2\", \"c\": \"C. 1\", \"d\": \"D. √3\"}}","_debug_options_count":4},{"id":26433,"question":"Dans un quadrilatère, la somme des angles intérieurs est toujours égale à 360°.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"La somme des angles intérieurs d'un quadrilatère est toujours égale à 360°.","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}]