Unit Circle Practice

Front

What is the definition of a radian?

Back

A radian is the angle subtended at the center of a circle by an arc whose length is equal to the radius of the circle.

Front

Convert 180 degrees to radians.

Back

Front

What is the relationship between degrees and radians?

Back

Front

What is the unit circle?

Back

The unit circle is a circle with a radius of 1 centered at the origin of a coordinate plane, used to define trigonometric functions.

Front

What are the coordinates of the point at 0 radians on the unit circle?

Back

The coordinates are (1, 0).

Front

Back

The coordinates are (0, 1).

Front

Back

Front

What is a coterminal angle?

Back

Front

How do you find a coterminal angle?

Back

Front

What is the angle in degrees and radians for the point at 270 degrees?

Back