Flashcard - Co-terminal Angles

Front

What are co-terminal angles?

Back

Co-terminal 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°.

Front

How do you find co-terminal angles for a given angle?

Back

To find co-terminal angles, add or subtract 360° (or 2π radians) from the given angle.

Front

Which angles are co-terminal to -75°?

Back

285°, -435°.

Front

Which angles are co-terminal to 450°?

Back

90°, -270°.

Front

What direction are negative angles measured from standard position?

Back

Clockwise.

Front

Which angles are co-terminal to 330°?

Back

690°, -30°.

Front

What are the negative and positive co-terminal angles of 240°?

Back

600°, -120°.

Front

What is the standard position of an angle?

Back

The standard position of an angle is when its vertex is at the origin and its initial side lies along the positive x-axis.

Front

What is the range of angles for one complete revolution?

Back

0° to 360° (or 0 to 2π radians).

Front

If an angle is 720°, what is a co-terminal angle within the range of 0° to 360°?

Back

360°.