The unit circle is a special circle that has a radius of 1. It's centered at the starting point on a graph, called the origin.
Understanding the unit circle is very important for learning about angles and trigonometry.
A radian is a way to measure angles. Imagine the circle's edge, which is called the arc. If the length of the arc is the same as the radius of the circle, that angle is 1 radian.
As you look at the unit circle, different angles have specific points. These points help us find sine and cosine values:
Using the unit circle, we can easily find values for trigonometry and see how angles rotate around the circle!
The unit circle is a special circle that has a radius of 1. It's centered at the starting point on a graph, called the origin.
Understanding the unit circle is very important for learning about angles and trigonometry.
A radian is a way to measure angles. Imagine the circle's edge, which is called the arc. If the length of the arc is the same as the radius of the circle, that angle is 1 radian.
As you look at the unit circle, different angles have specific points. These points help us find sine and cosine values:
Using the unit circle, we can easily find values for trigonometry and see how angles rotate around the circle!