Special Right Triangles

The two special right triangles are as important to Trigonometry as arithmetic is to mathematics.  On this page you will find the information you need to understand the relationships they have between their sides and angles, as well as plenty of practice helping you learn to apply those relationships to find missing information.  

In the tabs below you’ll find notes that you should patiently read through, a pair of PowerPoint lessons you can download and play, a set of practice problems and two videos.  The first video explains why these triangles are important and how their properties.  The second video explains how to apply these properties to find missing information in other triangles.

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