This document provides an exercise on calculating the area of different shapes in cm^2. It includes 5 diagrams of shapes and asks the reader to provide the area of each, with the answers then given in a correction section. The shapes include a square with an area of 8cm^2, a triangle with an area of 3cm^2, a rectangle with an area of 15cm^2, a semicircle with an area of 3.5cm^2, and a trapezoid with an area of 4cm^2.

1. Calcul mental
N°25
“Aire d’une figure”

2. Donner l'aire de chaque figure en cm².

3. Diapositive 1Diapositive 1

5. Diapositive 2Diapositive 2

7. Diapositive 3Diapositive 3

9. Diapositive 4Diapositive 4

11. Diapositive 5Diapositive 5

12. FIN

13. CORRECTION

14. Diapositive 1Diapositive 1 Aire = 8cm2

15. Diapositive 2Diapositive 2 Aire = 3cm2

16. Diapositive 3Diapositive 3 Aire = 15cm2

17. Diapositive 4Diapositive 4
Aire = 3,5cm2

18. Diapositive 5Diapositive 5 Aire = 4cm2