Angles de 30 et 60 degrés
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Cette image montre le triangle rectangle. Cette image est composée de trois angles. La mesure des angles est 30.60.90 degrés, tirer la ligne vintage Image Vectorielle Stock - Alamy
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A Quick Guide to the 30-60-90 Triangle - dummies
30°-60°-90° Triangle – Explanation & Examples
3-4-5 Triangle Methods, Properties & Uses | What is a 3-4-5 Triangle? - Video & Lesson Transcript | Study.com
