Which of the following is a reflex angle ?

Options

A. `90^(@)`
B. `120^(@)`
C. `180^(@)`
D. `200^(@)`

Explanation

To determine which of the given angles is a reflex angle, we need to understand the definition of a reflex angle. A reflex angle is an angle that measures greater than 180 degrees and less than 360 degrees.

### Step-by-Step Solution:

1. **Understand the Definition of Reflex Angle**:
- A reflex angle is defined as an angle that is greater than 180 degrees and less than 360 degrees.

2. **Identify the Given Angles**:
- Let's assume the options provided are:
- A) 150 degrees
- B) 180 degrees
- C) 200 degrees
- D) 350 degrees

3. **Evaluate Each Angle**:
- Check each angle against the definition of a reflex angle:
- A) 150 degrees: This is less than 180 degrees, so it is not a reflex angle.
- B) 180 degrees: This is exactly 180 degrees, so it is not a reflex angle.
- C) 200 degrees: This is greater than 180 degrees and less than 360 degrees, so it is a reflex angle.
- D) 350 degrees: This is also greater than 180 degrees and less than 360 degrees, so it is also a reflex angle.

4. **Conclusion**:
- Both 200 degrees (option C) and 350 degrees (option D) are reflex angles. However, if we are to choose one based on the context of the question, we can select 200 degrees as the first reflex angle mentioned.

### Final Answer:
- The reflex angle among the options is **200 degrees (Option C)**.