# Lesson Worksheet: Trigonometric Functions of Angles Mathematics

In this worksheet, we will practice finding the trigonometric functions of any angle and using the reference angle to find them.

**Q1: **

Determine the quadrant in which lies if and .

- Athe third quadrant
- Bthe second quadrant
- Cthe fourth quadrant
- Dthe first quadrant

**Q2: **

Find the value of where is the measure of an angle in standard position whose terminal side passes through .

**Q3: **

Find the value of where is the measure of an angle in standard position whose terminal side passes through .

**Q4: **

Find the value of where is the measure of an angle in standard position whose terminal side passes through .

**Q5: **

- AUndefined
- B1
- C0
- D

**Q6: **

- A
- B0
- CUndefined
- D1

**Q7: **

What is the reference angle for ?

**Q8: **

Given the angle , find the principal angle.

- A
- B
- C
- D
- E

**Q9: **

Given the angle , find the principal angle.

- A
- B
- C
- D
- E

**Q10: **

Find the smallest positive equivalent of .