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Sagot :

VINS

bonjour

40 x 80 = 3 200

aire rectangulaire  = 3 200 m²

aire  des 2 parties semi circulaire   =  3.14 x 20² =  1 256  m²

aire  =  4 456 m²

P = 2 x 80 + 3.14 x 20 =  222.8 m

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