# Chapter 13: Trigonometric Ratios

Difficulty Level:

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

This chapter explores trigonometric ratios in the context of problem solving in right triangles, non-right triangles and the unit circle. Radian measure and connections to area of triangles are also explored.

## Chapter Outline

- 13.1. Right Triangle Trigonometry
- 13.2. The Unit Circle
- 13.3. Introduction to Polar Coordinates
- 13.4. The Law of Sines
- 13.5. The Law of Cosines

### Chapter Summary

### Image Attributions

## Description

This chapter covers the trig ratios, their inverses, radians, and solving right triangles.

## Difficulty Level:

At Grade## Subjects:

## Date Created:

Dec 16, 2014## Last Modified:

Jul 23, 2015**You can only attach files to chapter which belong to you**

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