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Exercice 2

A)Le carré de 3,5

3,5^2=3,5×3,5=12,25

B)Le carré de 2, 5

2,5^2=2,5×2,5=6,25

C)H^2=2,5^2+3,5^2

D)H^2=6,25+12,25

H^2=√(18,5)

H=4,30m