After making this unit circle, it made my life SO much easier on Kahoot. For example, if you needed to find the sine of 30 degrees, you look at the circle to where 30 is marked and look at the y-coordinate. To find the cosine of an angle, you have to find the angle and use the x-coordinate. Lastly, the tangent of an angle is equal to the sine (y-coordinate), divided by the cosine (x-coordinate). Having the number of degrees and the radians also makes it much easier to solve questions because you can just look at the unit circle and it has the the radians and degrees right next to eachother.
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MeganThis is my Math Blog for Pre-Calculus! Categories |