1. Basics
2. Deductive Reasoning
3 - Parallel lines
4 - Congruent Triangles
5 - Quadrilaterals
6 - Inequalities
7 - Similar Polygon
8 - Rt. Triangles
9 - Circles
10 - Constructions
11 - Areas of 2D objects
12 - Areas and Volumes
13 - Coordinates
14 - Reflection/Rotation

 

Pairs Of Angles

 

Objective:

    • To be able to define complementary Angles (comp <s), Supplementary Angles (Supp. <s) and Vertical Angles (vert. <s)

Lesson 2-3 Pairs of Angles:

Special Pairs of Angles

    Complementary Angles:  Two angles whose measures have the sum of 90. Each angle is complement to each other.

    Supplementary Angles: Two angles whose measure have the sum of 180. Each angles is supplement to each other.

    Vertical angles: Opposite angles formed when two lines, rays, intersects. The angles formed at congruent.

Theorem 2-3    Vertical angles are congruent.     Angle 1 and angle 2 are congruent because they are vertical angles

 

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