If two 90 degree angles are placed back-to-back (Figure 5), they total 180 degrees. The sides of this angle form a straight line, so a 180 degree angle is a straight line. Adding two more 90 degree ...

Angles are measured using degrees, ranging from 0 all the way to 360 degrees in one full turn. There are many different types of angles, but possibly the most easily recognisable is the right angle.

Angles are measured in degrees using a protractor. There are some special angles that are useful to remember… a ¼ turn or right angle = 90° a ½ turn or straight line = 180° ...

If you need a protractor for any of our lessons and activities, please feel free to print it and use this resource. Find the protractor template below: Protractor by WJLA-TV on Scribd.