The following videos show some math tricks to help you remember the values of a unit circle and Trig Ratio of Special Angles in degrees (0, 30, 45, 60, 90) and also in radians.
How to memorize the Unit Circle?
The following diagrams give the exact values on the unit circle (degrees and radians). Scroll down the page for various tips and tricks on how to remember the values.
A Trick to Remember Values on The Unit Circle (First Quadrant)
People often forget what x,y coordinates on the unit circle go with what angle. This video shows a little ‘trick’ to remember the values on the unit circle in the first quadrant.
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