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Protractor

usgb/prəˈtræktər,prəʊˈtræktər/Volume
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LampPro Tip 1/3
Math InstrumentPlay
A protractor is specifically used in mathematics or drawing to work with angles. SlideWe used a protractor in geometry class to draw precise angles.
LampPro Tip 2/3
Semi-Circle ShapePlay
Protractors are commonly semi-circular but can be full circles, called 360-degree protractors. SlideFor a full rotation, we needed a 360-degree protractor.
LampPro Tip 3/3
Measurement UnitPlay
Protractors measure angles in degrees, a unit for measuring the size of an angle. SlideThe protractor showed that the angle was 45 degrees.