I used a protractor to find the measure of the angle.
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Example sentence for the noun protractor: My teacher assigned homework which required us to use a protractor.
Use a protractor.Use a protractor.Use a protractor.Use a protractor.
You use a protractor to meausure angles in degrees. Or you can draw a semi-circle (my favorite) ;)
a postulate u go by in order to use the protractor. ex: 63 degrees + 55 degrees(use the protractor to find the correct degrees)
other's protractor! of course you can borrow from others.