Quiz Mathématiques — 1ère Année Secondaire : Testez vos connaissances !

Question 1 sur 10 10:00

[{"id":71592,"question":"Quelle est la solution de l'équation 3x + 5 = 20 ?","option_a":"x = 5","option_b":"x = 15\/3","option_c":"x = 15","option_d":"x = 5\/3","option_e":"","option_f":"","bonne_reponse":"A","explication":"3x + 5 = 20 → 3x = 15 → x = 5. La solution est x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71593,"question":"Le triangle ABC avec AB = 5 cm, BC = 12 cm et AC = 13 cm est rectangle.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Vérifions avec le théorème de Pythagore : 5² + 12² = 25 + 144 = 169 = 13². Le triangle est donc rectangle en B.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71594,"question":"Quelle est l'image de -2 par la fonction f(x) = 2x + 3 ?","option_a":"f(-2) = -1","option_b":"f(-2) = -7","option_c":"f(-2) = 1","option_d":"f(-2) = -4","option_e":"","option_f":"","bonne_reponse":"C","explication":"f(-2) = 2*(-2) + 3 = -4 + 3 = -1. L'image de -2 est -1.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71595,"question":"La moyenne de 5, 7, 9 et 11 est 8.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Moyenne = (5 + 7 + 9 + 11) \/ 4 = 32 \/ 4 = 8. L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71596,"question":"Quelle est la forme factorisée de x² - 9 ?","option_a":"(x - 3)(x + 3)","option_b":"(x - 9)(x + 1)","option_c":"(x - 3)²","option_d":"(x + 3)²","option_e":"","option_f":"","bonne_reponse":"A","explication":"x² - 9 est une différence de carrés : (x - 3)(x + 3).","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71597,"question":"Un angle de 180° est un angle plat.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un angle plat mesure exactement 180°. L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71598,"question":"Quelle est la solution de l'inéquation 2x - 7 \u003E 5 ?","option_a":"x \u003E 6","option_b":"x \u003C 6","option_c":"x \u003E 1","option_d":"x \u003C 1","option_e":"","option_f":"","bonne_reponse":"A","explication":"2x - 7 \u003E 5 → 2x \u003E 12 → x \u003E 6. La solution est x \u003E 6.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71599,"question":"Le périmètre d'un cercle de rayon r est donné par la formule P = 2πr.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"La formule du périmètre d'un cercle est bien P = 2πr. L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71600,"question":"Quelle est la valeur de x dans l'équation 4(x + 2) = 20 ?","option_a":"x = 3","option_b":"x = -2","option_c":"x = 2","option_d":"x = 5","option_e":"","option_f":"","bonne_reponse":"A","explication":"4(x + 2) = 20 → x + 2 = 5 → x = 3. La solution est x = 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":71601,"question":"Un quadrilatère avec deux côtés parallèles est un trapèze.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"Un quadrilatère avec au moins deux côtés parallèles est un trapèze. L'affirmation est vraie.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]