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Sagot :

Bonjour,

OS = la hauteur = 5cm
Om = le rayon =  4cm

b)

Pythagore:

SM² = 5²+ 4²

SM² = 25 + 16

SM² = 41

SM =√41

SM ≈ 6,40cm

a)[OS] = 5 cm
[OM] = 8/2= 4

2 2 2
b) SM =OM + OS
2 2 2
SM = 4 + 5
2
SM = 16 + 25
2
SM = 41
SM = √41
SM = 6.40312 cm

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