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ACTIVITES MENTALES

ACTIVITES MENTALES. Préparez-vous !. Collège Jean Monnet. Question 1. 2 5. 3 10. Comparer : et. xOy = 120° [Ot) bissectrice de xOz Calculer l’angle xOt :. Question 2. t. z. x. ?. 16°. y. O. Question 3. 4 21. 5 7. Calculer :. +. Question 4.

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ACTIVITES MENTALES

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  1. ACTIVITES MENTALES Préparez-vous ! Collège Jean Monnet

  2. Question 1 2 5 3 10 Comparer : et

  3. xOy = 120° [Ot) bissectrice de xOz Calculer l’angle xOt : Question 2 t z x ? 16° y O

  4. Question 3 4 21 5 7 Calculer : +

  5. Question 4 Quelle propriété nous permet de calculer l ’angle xAB ? Quelle propriété nous permet de calculer l ’angle xAB ? u x y A 63° z t B v (xy)//(zt)

  6. Question 5 Blé (en Kg) Pain (en Kg) ? 15 6 5 3 ? Compléter ce tableau de proportionnalité :

  7. Correction

  8. Question 1 2 5 2 5 2 5 3 10 3 10 4 10 Comparer : et donc > =

  9. xOy = 120° Question 2 xOz = 120° - 16° = 104° Donc xOt = 104° : 2 = [Ot) bissectrice de xOz 52° t z x 52° 16° y O

  10. Question 3 4 21 4 21 15 21 5 7 19 21 Calculer : + = = +

  11. Quelle propriété nous permet de calculer l ’angle xAB ? xAB = u A x y 63° z t B v (xy)//(zt) Question 4 63° Si 2 droites sont parallèles, alors elles définissent des angles alternes-internes égaux

  12. Question 5 6 5 Compléter ce tableau : : 2 18 Blé (en Kg) Pain (en Kg) 3 15 2,5 X3

  13. FIN !

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