# 3.8: Study Guide

**At Grade**Created by: CK-12

Keywords: Define, write theorems, and/or draw a diagram for each word below.

** Section: Lines and Angles**

Parallel

Skew lines

Parallel Postulate

Perpendicular Line Postulate

Constructing a Perpendicular Line through a Point not on a Line

Constructing a Perpendicular Line through a Point on a Line

Transversal

Corresponding Angles

Alternate Interior Angles

Alternate Exterior Angles

Same Side Interior Angles

**Homework:**

** Section: Properties of Parallel Lines**

Corresponding Angles Postulate

Alternate Interior Angles Theorem

Alternate Exterior Angles Theorem

Same Side Interior Angles Theorem

**Homework:**

** Section: Proving Lines Parallel**

Converse of Corresponding Angles Postulate

Converse of Alternate Interior Angles Theorem

Converse of the Alternate Exterior Angles Theorem

Converse of the Same Side Interior Angles Theorem

Parallel Lines Property

**Homework:**

** Section: Properties of Perpendicular Lines**

Congruent Linear Pairs

Theorem 3-1

Theorem 3-2

Adjacent Complementary Angles

**Homework:**

** Section: Parallel and Perpendicular Lines in the Coordinate Plane**

Slope

intercept

Slope-intercept form (intercept form)

Standard Form

Finding the equation of a Line

Finding the equation of a Parallel Line to a Given Line

Finding the equation of a Perpendicular Line to a Given Line

**Homework:**

** Section: The Distance Formula**

Distance Formula

Distance between Vertical and Horizontal Lines

Distance between Lines with or -1

**Homework:**

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