Bonsoir, pouvez vous m’aidez à ces exercice s’il vous plaît (Le 2 et le 3) niveau 4ème.... Pergunta de ideia deMzellePrinchess

MzellePrinchess @MzellePrinchess

January 2021 1 108 Report

Bonsoir, pouvez vous m’aidez à ces exercice s’il vous plaît (Le 2 et le 3) niveau 4ème

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Sueda Bonjour

numéro 3

AB = 23/6 et BC = 7/4

1) 23/6 > 7/4 donc AB est la longueur

2) Périmètre = 2 ( 23/6 + 7/4) = 2 ( 46/12 + 21/12) = 2 x 67/12 = 134/12 = 67/6

3) aire = 23/6 x 7/4 = 161/24

AC² = ( 23/6)² + ( 7/4)²
AC² = 529/36 + 49/16
AC² = 2 116/144 + 441/144 = 2 557/144
AC = √2557/144 = 4,21389896

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MzellePrinchess Merci

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