Two lines intersect at A. The intersection of these two lines forms an angle.
The angle formed is written as BAC or BC.
The vertex of the angle is always represented by the middle letter.
A single letter can also be used to represent an angle e.g. or a
Measurement of Angles
A degree is defined as 1⁄360th of one revolution or turn.
i.e. 360° = one revolution
A minute is defined as 1⁄60th of a degree.
i.e. 1 degree = 60 minutes (1° = 60')
Angles can be measured using a protractor.
Types of Angles
p and q are adjacent angles.
Angles that lie within a certain range of values are given special names.
Properties of Angles