Flashcardizz Reference and Co-terminal Angles (5A)

Front

What is 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).

Front

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

Back

To find a coterminal angle, add or subtract 360° (or 2π radians) until the angle is within the range of 0° to 360° (or 0 to 2π radians).

Front

What is the range of angles for standard position?

Back

The range of angles for standard position is from 0° to 360° (or 0 to 2π radians).

Front

In which quadrant is an angle of -570° located?

Back

An angle of -570° is located in Quadrant II.

Front

How do you determine the quadrant of an angle?

Back

To determine the quadrant of an angle, convert it to a positive angle by adding or subtracting 360° (or 2π radians) until it falls within the range of 0° to 360°.

Front

What is the sine of 300°?

Back

The sine of 300° is -√3/2.

Front

What is the sine of -660°?

Back

The sine of -660° is √3/2.

Front

What are the positive and negative coterminal angles of 240°?

Back

The positive coterminal angle is 600°, and the negative coterminal angle is -120°.

Front

What is the formula to convert degrees to radians?

Back

To convert degrees to radians, multiply by π/180.

Front

What is the formula to convert radians to degrees?

Back

To convert radians to degrees, multiply by 180/π.