Reference Angles and Evaluating at Any Angle (Algebra 2)
Free printable Algebra 2 precalculus worksheet on finding the reference angle of any special angle and using the quadrant sign to evaluate a trigonometric function exactly.
✓ Answer key checked by math, never wrong
Algebra 2 · Math worksheet
Name
Date
Math
Algebra 2: Reference Angles and Evaluating at Any Angle
For each angle, state the reference angle (the acute angle to the x-axis), then use the quadrant to attach the correct sign and give the exact value.
- 1.Find the reference angle for 120°, then evaluate sin(120°). Give an exact value.
- 2.Find the reference angle for 135°, then evaluate cos(135°). Give an exact value.
- 3.Find the reference angle for 225°, then evaluate tan(225°). Give an exact value.
- 4.Find the reference angle for 240°, then evaluate sin(240°). Give an exact value.
- 5.Find the reference angle for 90°, then evaluate cos(90°). Give an exact value.
- 6.Find the reference angle for 240°, then evaluate tan(240°). Give an exact value.
- 7.Find the reference angle for 270°, then evaluate sin(270°). Give an exact value.
- 8.Find the reference angle for 330°, then evaluate cos(330°). Give an exact value.
- 9.Find the reference angle for 330°, then evaluate tan(330°). Give an exact value.
- 10.Find the reference angle for 225°, then evaluate sin(225°). Give an exact value.
Made with ChalkBee · chalkbee.com