Http://www.ossmann./protractor/conventional-protractor.pdf, . 3 ways protractor - wikihow, How to make a protractor. protractors are a tool used in mathematics to measure angles in degrees. you might need a protractor to work on homework or make. How divide circle thirds | sciencing, In many geometry courses, you will be expected to divide a circle equally into thirds. since a circle is 360 degrees, you might know that a circle can be split up.

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Printable protractor - wlonk, 180 0 0 180 80 100 70 110 60 120 50 130 40 140 30 150 20 160 10 170 90 90 170 10 160 20 150 30 140 130 50 120 60 110 70 100 80 printed transparent plastic. http://thinkzone.wlonk.com/MathFun/protractor.pdf How protractor: 8 steps ( pictures) - wikihow, How protractor. protractor handy tool measure draw angles. generally, semi-circular shape, protractors full. http://www.wikihow.com/Use-a-Protractor Measuring angles | mathplayground., Measure angles math playground! practice measuring angles protractor.. http://www.mathplayground.com/measuringangles.html