Thursday, September 15, 2011

1.4 Measure and Classify Angles


Goal: Name, measure, and classify angles
VOCABULARY

Angle
An angle consists of two different rays with the same endpoint.

Sides of an angle
In an angle, the rays are called the sides of the angle.

Vertex of an angle
In an angle, the endpoint is the vertex of the angle.

Angle Bisector
Is a ray that divides an angle into two angles that are congruent
Congruent Angles
If they have the same measure


Angle Addition Postulate (2nd Postulate of the year)