s’il vous plaît, je dois faire calculer JC.... Pergunta de ideia deesthermca

esthermca @esthermca

June 2021 1 100 Report

s’il vous plaît, je dois faire calculer JC

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naciba

Réponse:

on utilise le théorème de Thalès

$\frac{ac}{ab} = \frac{jc}{ib} \\ \frac{4.9}{7} = \frac{?}{3} \\ jc = \frac{4.9 \times 3}{7} \\ jc = 2.1$

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