Algebra-2

Question Analysis
This problem assesses the ability to find the reference angle for an angle in the third quadrant.

Key Concept Explanation
The reference angle is the smallest angle formed between the terminal side of an angle and the x-axis. For an angle in the third quadrant, the reference angle is found by subtracting the given angle from .

Step-by-step Solution
1. Identify the given angle:
2. Calculate the reference angle: