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Handout

Purplemath: The Unit Circle

Curated by ACT

Relates the unit circle to the method for finding trig ratios in any of the four quadrants. Demonstrates how the unit circle might be useful.

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CCSS: Adaptable
Concepts
cosine, height, hypotenuse, radius, sine, tangent, unit circle
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Additional Tags
purplemath lesson, angle, base, circle, ratio, trig, unit
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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional