Math 3 Unit 8 Trig Review

Front

What is the conversion of degrees to radians?

Back

To convert degrees to radians, use the formula: radians = degrees × (π/180).

Front

What is 36° in radians?

Back

36° = π/5 radians.

Front

How do you determine the quadrant of an angle?

Back

To determine the quadrant, consider the angle's value: 0° to 90° (Quadrant I), 90° to 180° (Quadrant II), 180° to 270° (Quadrant III), and 270° to 360° (Quadrant IV).

Front

Where does the angle -245° lie?

Back

The angle -245° lies in Quadrant II.

Front

What is the amplitude of a sine wave?

Back

The amplitude is the maximum distance from the midline to the peak of the wave.

Front

What is the amplitude of the graph if the maximum value is 3?

Back

The amplitude is 3.

Front

What is the measure of the angle 120° in radians?

Back

120° = 2π/3 radians.

Front

How do you convert radians to degrees?

Back

To convert radians to degrees, use the formula: degrees = radians × (180/π).

Front

What is the measure of the angle 90° in radians?

Back

90° = π/2 radians.

Front

What is the sine of 30°?

Back

The sine of 30° is 1/2.