bonjour
1. aire 1 = 6.3 * 5.2 = 32.76
aire 2 = 5.2 * 4.7 = 24.44
aire 3 = 3.8 * 4.7 = 17.86
aire 4 = 3.8 * 6.3 = 23.94
total = 99
2. reproduire
3. construction
4. k (c + d ) = kc + kd
k = a + b
( a + b ) ( c + d) = ac + ad +bc + bd
