Quiz Maths Collège : Arithmétique, Géométrie et Logique

Question 1 sur 10 10:00

[{"id":15978,"question":"Quel est le résultat de l'opération 3 × (4 + 5) ?","option_a":"27","option_b":"19","option_c":"32","option_d":"23","option_e":"","option_f":"","bonne_reponse":"A","explication":"On applique d'abord la parenthèse : 4 + 5 = 9, puis on multiplie par 3 : 3 × 9 = 27.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15979,"question":"Un triangle rectangle a un angle de 30°. Quel est la mesure de l'autre angle aigu ?","option_a":"60°","option_b":"45°","option_c":"90°","option_d":"120°","option_e":"","option_f":"","bonne_reponse":"A","explication":"Dans un triangle rectangle, la somme des angles aigus est de 90°. Si un angle est 30°, l'autre est 90° - 30° = 60°.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15980,"question":"Vrai ou Faux ? La fraction 5\/10 est égale à 1\/2.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"En simplifiant 5\/10 par 5, on obtient 1\/2. Les deux fractions sont donc égales.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15981,"question":"Quel est le périmètre d'un carré de côté 7 cm ?","option_a":"28 cm","option_b":"14 cm","option_c":"49 cm","option_d":"7 cm","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le périmètre d'un carré se calcule par 4 × côté. Ici, 4 × 7 = 28 cm.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15982,"question":"Vrai ou Faux ? Le nombre 123 est divisible par 3.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"La somme des chiffres de 123 est 1 + 2 + 3 = 6, qui est divisible par 3. Donc 123 est divisible par 3.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15983,"question":"Quelle est la solution de l'équation x + 5 = 12 ?","option_a":"7","option_b":"17","option_c":"5","option_d":"12","option_e":"","option_f":"","bonne_reponse":"A","explication":"Pour isoler x, on soustrait 5 des deux côtés : x = 12 - 5 = 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15984,"question":"Vrai ou Faux ? Un parallélogramme a ses diagonales de même longueur.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"B","explication":"Seuls les rectangles (un type de parallélogramme) ont des diagonales de même longueur. Un parallélogramme général n'a pas cette propriété.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15985,"question":"Quel est le volume d'un cube d'arête 4 cm ?","option_a":"64 cm³","option_b":"16 cm³","option_c":"48 cm³","option_d":"12 cm³","option_e":"","option_f":"","bonne_reponse":"A","explication":"Le volume d'un cube se calcule par arête³. Ici, 4³ = 64 cm³.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15986,"question":"Vrai ou Faux ? La racine carrée de 16 est 4.","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"A","explication":"4 × 4 = 16, donc la racine carrée de 16 est bien 4.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0},{"id":15987,"question":"Quel est le résultat de 25 % de 80 ?","option_a":"20","option_b":"16","option_c":"32","option_d":"10","option_e":"","option_f":"","bonne_reponse":"A","explication":"25 % de 80 se calcule par (25\/100) × 80 = 0,25 × 80 = 20.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0}]