Page 2 - LN 1
P. 2
Part of Angles:
1. Two rays having a common end point form an angle.
2. The two rays forming the angle are called the arms of the angle.
3. The common end point is called the vertex of the angle.
4. “ < “ symbol is used to denote angle.
5. We use degree “ ˚ ” to measure angles.
Naming an Angle:
A
O
B
o Arms = Ray OA, Ray OB
o Vertex = 0
o Angle = <AOB or <BOA
