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Sagot :

exo 3 :
1/
A = c x c
A = 8 cm x 8 cm
A = 64 cm2

2/
A = c x c
A = 1,2 cm x 1,2 cm
A = 1, 44 cm2

3/
A = c x c
A = (racine carré de 3) x (racine carré de 3)
A = 3

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