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TifennJ
@TifennJ
April 2019
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CRD est un triangle en C tel que :
DR=1,6 cm et CDR=67°
Calculer la longueur CD,arrondie au centième.
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slyz007
Verified answer
CosCDR=CD/DR
Donc CD=DRxCos67=1,6xCos67≈0,63
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Verified answer
CosCDR=CD/DRDonc CD=DRxCos67=1,6xCos67≈0,63