In this worksheet, we will practice finding the values of quadrantal angles.

**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 .

**Q4: **

Two points and lie on the unit circle centered at the origin such that the coordinate of are and .

Which of the following properties of do you need to use to find the coordinates of point .

- AAll three internal angles are equal.
- BAll three sides are equal.
- CThe height of an equilateral triangle is half its median.
- DThe height of an equilateral triangle is also its median.
- EThe height of an equilateral triangle is equal to its side.

Hence, find and .

- A
- B
- C
- D
- E

The line intersects the line at . The triangle is formed by reflecting in the line . What kind of triangle is the triangle ?

- Aequilateral
- Bright
- Cisosceles
- Dscalene

Find .

- A
- B
- C
- D
- E1

**Q5: **

Find the value of .

- A0
- B1
- C
- DUndefined

**Q6: **

Find the value of .