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# ZingPath: Problem Solving with Trigonometric Functions

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## Problem Solving with Trigonometric Functions

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### Lesson Focus

#### The Angle between two Lines, Angles of Inclination or Slope

Algebra-2

You will find the angle between two lines using their angles of inclination or slopes.

### Now You Know

After completing this tutorial, you will be able to complete the following:

• Calculate the angle between two lines by using their angles of inclination.
• Calculate the angle between two lines by using the slopes of the lines.

### Tutorial Details

 Approximate Time 20 Minutes Pre-requisite Concepts Students should be able to define the slope of a line and angle of inclination of a line, know the relationship between slope and the angle of inclination of a line, know the tangent difference formula, and define the angle between two lines. Course Algebra-2 Type of Tutorial Skills Application Key Vocabulary angle between two lines, angle of inclination, inclination