Question Analysis
Identify a Quadrant I angle with , using 30-60-90 triangle ratios.
Key Concept Explanation
Tangent ratio: .
In a 30-60-90 triangle ():
(rationalized).
Step-by-Step Solution
1. Simplify the given value: .
2. Recall special angles:
,
.
3. Match to the ratio: corresponds to .
Option Analysis
0°: Incorrect ()
30°: Correct ()
60°: Incorrect (