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ACTIVITES MENTALES

ACTIVITES MENTALES. Préparez-vous !. Collège Jean Monnet. Question 1. Développer : (9x-5)². Question 2. I. C. J. K. Calculer l’aire du triangle IJK. IJ = 3 cm JK = 4 cm IK = 8 cm JC = 2 cm. Calculer OS à un dixième. Question 3. U. S. 5 cm. 31°. ?. O.

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ACTIVITES MENTALES

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  1. ACTIVITES MENTALES Préparez-vous ! Collège Jean Monnet

  2. Question 1 Développer : (9x-5)²

  3. Question 2 I C J K Calculer l’aire du triangle IJK. IJ = 3 cm JK = 4 cm IK = 8 cm JC = 2 cm

  4. Calculer OS à un dixième. Question 3 U S 5 cm 31° ? O

  5. Enoncer la définition du livret correspondant à cette figure : Question 4

  6. Correction

  7. Question 1 Développer : (9x-5)² 81x² - 90x + 25

  8. Aire du triangle IJK : Question 2 I C IK  JC 8 2 8 cm² = = J 2 2 K IJ = 3 cm JK = 4 cm IK = 8 cm JC = 2 cm

  9. SOU est rectangle en O. Question 3 U S 5 cm 31° ? O 8,3 cm SO à un dixième près

  10. Question 4 Si un quadrilatère a un centre de symétrie alors c’est un parallélogramme.

  11. FIN !

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