How to divide a right angle into 3 equal angles

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This YouTube channel is dedicated to teaching people how to improve their technical drawing skills. It focuses on drawing figures from the geometric plane to descriptive geometry and also different systems of technical drawing representation. If you subscribe, click like or leave a comment you will be helping us to grow our channel and help more people with their technical drawing skills. Thank you in advance. Dubbed by Frank Shaw. Music by Antonio Fernández Ruiz. http://antoniofernandez.es/