Geometry

Question Analysis  

The main focus is applying the co-function identity for complementary angles in a right triangle.  

 

Key Concept Explanation  

Complementary Angles: In a right triangle, acute angles sum to , so  and .  

 

Step-by-Step Solution  

1. Recognize the complementary angle relationship:  

Since  and  are complementary, .  

2. Substitute the given value:  

Given

Click "Show Answer" to reveal the answer and analysis