Diy protractor with compass and ruler

learn to make protractor yourself with easy steps.
This is unique method to make a protractor using compass and ruler. Its my own invented after lots of efforts, I discovered the measurement ratio from the architectural software "google sketchup" I take a millions of centimeters to find a fine accurate value. After Several days of struggle I able to found a method which is the worlds most accurate method for making protractor.
formula value: 3.1376067413
Thanks for watching..
Nalemitho Soomro
Please visit my another best channel "Arts and Crafts"
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What is a protractor: an instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge.
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Thanks for watching,
Nalemitho Soomro
Drawing tutorials easy drawing kids drawing classes,online classes how to make geometry geometrical instruments protractors protractor without protractor with protractor using compass and ruler make a protractor diy protractor geometry angles geometry formulas easy geometry mathematics geometric art o level geometry a level geometry unique protractor how to draw 100 degree angle 140 degree angle.