Angle relationships  Angles and Lines
Angle relationships
Lessons
Notes:
In this lesson, we will learn:
 Application of Supplementary Angles
 Complementary Angles on Polygons
 Application of Complementary Angles
 Proving Vertical Angles Using Supplementary Angles
 Application of Vertical Angles
 Understanding Adjacent Angles
 Finding Adjacent Angles
Notes:
 Supplementary angles: two angles which add up to 180°, don't necessarily have to be together.
 Complementary angles: two angles which add up to 90°, again, don't necessarily have to be together.
 The "S" of Supplementary stands for "straight", and there are 180° on a straight line.
 The "C" of Complementary stands for "corner", and there are 90° at a corner.
 Vertical angles: angles opposite each other are the same when two lines cross
 Adjacent angles: two angles sharing a common side and vertex, yet they do not overlap.

Intro Lesson
Introduction to Supplementary, Complementary, Vertical, and Adjacent Angles

2.
Complementary Angles on Polygons
Which of the following pair(s) is/are complementary angles?

3.
Which of the following pair(s) is/are complementary angles?

7.
Given that $\angle AOC$=125° and $\angle DOE$=35°.

9.
Understanding Adjacent Angles
What of the following is/are adjacent angles?

10.
Finding Adjacent Angles
$\angle AOB$=30°, $\angle AOC$=100°.