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Sagot :

bonjour,

1a) aire = AB*BC = 2*0,5 = 1

b) P = 2(2+0,5) = 4+1=5

2) AB = 5, BC = 0,5

aire = AB*BC=5*0,5=2,5cm2

P = ....

AB = 11, BC = 0,5

Aire = ....

P = ....

3a) AB*BC

aire = 1

aire = x*BC

BC = x/1

b) P = 2(x+x/1) =

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