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Sagot :

VINS

bonjour

aire  ABC  = ( 40 x 30 ) / 2 = 1200 /2 = 600 m²

CA/CE = CB/CD = AB/ED

40/100 = 30 / Ed

ED  =  75 m

aire CDE (  100 x 75 ) /2 = 3750 m²

600 m² =  40 min

3 750 m² =  250 min

250 min  =  4 h 10 min

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