ABC est un triangle rectangle en A inscrit dans le cercle (C) angle BAC = 90° BC = 5 cm = diamètre de (C) l'angle ABC = 60° Calculer AB.

C'est urgent s'il vous plait !!!

 

 

By: USER3168
28 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques

ABC est un triangle rectangle en A inscrit dans le cercle (C) angle BAC = 90° BC = 5 cm = diamètre de (C) l'angle ABC = 60° Calculer AB.

C'est urgent s'il vous plait !!!

 

 

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201 Viewed 201 Answers

Answer (201)

Best Answer
(57)

AB/BC = cos60°=> AB = 5.cos60° = 5.1/2 = 2,5 cm

Answered on 28 Agustus 2025

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