With a protractor. A protactor looks like a semi circle. At the bottom of the the protractor there will be another semi circle but much smaller with a dot in the middle. To learn how to use a protractor or how to measure a circle go to this website http://mathforum.org/library/drmath/view/57664.html
It will tell you almost everything on how to measure angles.
Chat with our AI personalities
Use a protractor, find a straight line and place the flat bottom part of the protractor on it and record the angle corresponding to the angle that you are measuring
Yes, congruent angles are angles that have the same measure.
Angles with the same angle measure are congruent.
complementary angles
congruent angles
Not normally. A protractor is generally used to measure angles.