Geometry

Question Analysis  

Calculate  in Quadrant I using values from the 45-45-90 triangle.  

 

Key Concept Explanation  

In a 45-45-90 triangle, .  

 

Step-by-Step Solution  

1. Recall the values:  

, .  

2. Add the values:  

.  

 

Option Analysis  

: Incorrect (represents one ratio, not the sum)

: Correct (sum of two  terms)

 : Incorrect (exceeds unit ...