Bonjour,
BFA => (9*3)/2 = >13,5m²
A.E => (6*4)/2 => 12m²
E.D =>(9*4)/2 = > 18m²
HCD = > (7*4)/2 = 14m²
BFHC =>
[(B+b)*h ]/2
[(9+7) *8]/2 = > 64m²
Total:
13,5 +12+18+14 +64 =>121,5m²
