Right triangles and trigonometry


Named after the Greek philosopher who lived nearly 2600 years ago, the Pythagorean theorem is as good as math theorems get (Pythagoras also started a religious movement). It’s simple. It’s beautiful. It’s powerful. In this tutorial, we will cover what it is and how it can be used. We have another tutorial that gives you as many proofs of it as you might need.

Part of Geometry

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Frequently Asked Questions

What is Right triangles and trigonometry by Khan Academy?

Right triangles and trigonometry is a learning resource for Right Triangles. It is available in the following format(s): Online class. It is suited for 6th - 9th students.

What grade level is Right triangles and trigonometry by Khan Academy appropriate for?

It is designed for 6th - 9th students, but could be useful for students of other ages as well; please look at the description and images to determine suitability.

How much does Right triangles and trigonometry by Khan Academy cost?

It is free!