Trigonometry: The Unit Circle


Math 30-1 - The Unit Circle

Mobile Devices:

Tablets and smartphones can access the The Unit Circle Animations on YouTube.


Download and print the Unit Circle Workbook.

Interactive Graphs:

All of the Unit Circle Graphs are interactive on Desmos.

Lesson Transcript:

All of the Unit Circle Notes are available as a video transcript.

Topics Covered:

  • circle equations
  • the unit circle
  • exact values of primary trigonometric ratios
  • exact values of reciprocal trigonometric ratios
  • problem solving with the unit circle. (rotating a graphic in a video game, calculating the height of Calgary Tower's observation deck.)


WNCP Curriculum Connection: Trigonometry, Specific Outcomes 1-3


Video Tutorial

the unit circle

Download the Printable Workbook.

Videos: Desktop computers and laptops require Adobe Flash Player and the printable notes require Adobe Reader. Smartphones and tablets will not be able access the Flash content on this page (resulting in empty space below). Use the YouTube alternative.