Coterminal Angles +

Front

What are coterminal angles?

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).

Front

How do you find a positive coterminal angle for a given angle?

Back

To find a positive coterminal angle, add 360° (or 2π radians) to the given angle until the result is positive.

Front

How do you find a negative coterminal angle for a given angle?

Back

To find a negative coterminal angle, subtract 360° (or 2π radians) from the given angle until the result is negative.

Front

What is the positive coterminal angle for 170°?

Back

530°.

Front

What is the negative coterminal angle for 170°?

Back

-190°.

Front

Which angles are coterminal with 330°?

Back

690° and -30°.

Front

How do you convert radians to degrees?

Back

Multiply the radian measure by 180/π.

Front

What is π radians in degrees?

Back

180°.

Front

What direction are negative angles measured from standard position?

Back

Clockwise.

Front

What direction are positive angles measured from standard position?

Back

Counterclockwise.