Question

Can someone explain the Unit Circle in simple terms? And at high school level. I just learned about it and I'm completely lost.

Answer 1

It is often used in trigonometry and is the circle of radius 1 centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane. The center is put on a graph where the x-axis and y-axis cross. Because the radius is 1, we can directly measure sine, cosine and tangent. The point on the unit circle that corresponds to an angle of t radians counterclockwise from (1,0) is (cos(t), sin(t))².

Explanation:

The unit circle is a circle with a radius of 1.

Answer 2

The unit circle is a circle with a radius of 1.

This means that for any straight line drawn from the center point of the circle to any point along the edge of the circle, the length of that line will always equal 1.

Explanation: