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Sagot :

Bonsoir,

Aire du triangle ADF:

(base * hauteur)/2

(2*3)/ 2 = 6/2 = >3m²

Aire du rectangle ABCD

L*l

7* 3 => 21 m²

aire du triangle ABE

(base * hauteur)/ 2

(7*2)/2 = 14/2 = >7m²

total:

3+21+7 = 31m²

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