← Algebra Course
UNIT 1 · LESSON 7

Why Trigonometry Works

Understand what trigonometry measures and why it exists.

WHY LEARN THIS?

This idea has a purpose.

Mathematics becomes much easier when you understand what a tool was designed to accomplish. This lesson will build Why Trigonometry Works from the idea itself instead of asking you to memorize a rule first.

Places this kind of mathematics can appear:

measurement
geometry
astronomy
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