<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Skip Navigation

Chapter 8: Right Triangle Trigonometry

Difficulty Level: Basic Created by: CK-12


This chapter takes a look at right triangles. A right triangle is a triangle with exactly one right angle. In this chapter, we will prove the Pythagorean Theorem and its converse. Then, we will discuss trigonometry ratios and inverse ratios.

Chapter Outline

Chapter Summary


This chapter begins with a review of how to simplify radicals, an important prerequisite technique for working with the Pythagorean Theorem. The Pythagorean Theorem, its converse, and Pythagorean triples are discussed in detail. Applications of the Pythagorean Theorem are explored including finding missing lengths in right triangles. The chapter then branches out into applications of special right triangles, namely 45-45-90 and 30-60-90. The connection between trigonometry and geometry is explored through trigonometric ratios, trigonometry word problems and inverse trigonometric ratios at the end of this chapter.

Image Attributions

Show Hide Details
Difficulty Level:
8 , 9 , 10
Date Created:
Feb 24, 2012
Last Modified:
May 11, 2016
Save or share your relevant files like activites, homework and worksheet.
To add resources, you must be the owner of the FlexBook® textbook. Please Customize the FlexBook® textbook.
Please wait...
Please wait...
Image Detail
Sizes: Medium | Original

Original text