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Sagot :

Réponse:

C- pythagore

EF ² = FD²+ ED²

ED²= EF²- DF²

=(3,3)²-(1,8)²

= 10.89- 3.24

ED² = 7,65

ED = √7.65

ED= 2.765863337

ED = 2.76 cm

Just la question C (dsl)

Chui algérienne j cmprnd pas c symbole.....

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