Geometry

Question Analysis  

Determine the angle corresponding to the unit circle coordinates , focusing on axis-aligned angles.  

 

Key Concept Explanation  

Unit Circle Axis Points:  

lies on the positive y-axis, corresponding to .  

 

Step-by-Step Solution  

1. Recall unit circle axis coordinates:  

, , , .  

2. Match coordinates to angle:  

directly corresponds to .  

 

Option Analysis  

30°: Incorrect ()

45°: Incorrect ()

60°: Incorrect (

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