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Measuring angles using a protractor | Angles and intersecting lines | Geometry | Khan Academy

Let's use our virtual protractor to measure some angles together, shall we?

Let's come up with an exact way to measure an angle using a protractor. We'll also learn about acute angles. Not to be confused with augly angles :)

The naming of an angle is related to the line segments that create it. We'll also learn about the angle's vertex. Come on. Let's do this.

Quality Math And Science Videos that feature step-by-step example problems!