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# Radian Measure

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In this lesson, we will learn about radian measure. Up to this point, we have used degrees to measure our angles. As we progress in math, it is more useful to work with radians. Radian measures will allow us to treat the trigonometric functions as functions with domains of real numbers, rather than angles. Additionally, we will learn how to convert between degrees and radians using a simple formula.

Radian Measure Resources:

Videos:

YouTube - Video Khan Academy - Video Text Lessons:

Math Page - Text Lesson Monterey Institute - Text Lesson + Show More +