Lesson 1.5 Angle Relationships

Geometry CP

Mrs. Mongold

Adjacent Angles

Vertical Angles

Linear Pair

Examples

• Name a linear pair

Examples

• Name vertical angles

Examples

• Name adjacent angles

Special Note on Vertical Angles

Complementary Angles

Supplementary Angles

Homework

• Pg 45/ 8-13

• Pg 46/23-27

• Pg 47/41-55 odd

Example

Find the measures of two supplementary angles if the measure of one angle is 6 less than five times the other angle.

Example

• Find the measures of two complementary angles if one angle measures six degrees less than five times the measure of the other.

Perpendicular Lines

ALGEBRA Examples

• Find x so line KO is perpendicular to line HM

ALGEBRA Examples

• Find x so lines AD and CE are perpendicular

Homework

• In-class Pg 45-46/ 14-22 even

• Chapter Packet pg 31

T-O-D

• Summarize the lesson by writing a brief statement about each special pair of angles discussed in this lesson. Make sure that you use specific words from the lesson and draw a labeled picture of each pair!