Unit Circle Practice

Front

What is the definition of a coterminal angle?

Back

Coterminal angles are angles that share the same terminal side when drawn in standard position. They can be found by adding or subtracting multiples of 360° (or 2π radians) to the angle.

Front

Convert 300° to radians.

Back

Front

What is the positive angle in radians that represents point L if it is at 240°?

Back

Front

What is the positive angle in radians that represents point D if it is at 60°?

Back

Front

What is the positive angle in radians that represents point H if it is at 150°?

Back

Front

How do you find a coterminal angle?

Back

To find a coterminal angle, add or subtract 360° (or 2π radians) from the given angle.

Front

Convert 315° to radians.

Back

Front

What is the definition of the unit circle?

Back

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

Front

What is the sine of 60°?

Back

Front

What is the cosine of 240°?

Back