Geometry

Question Analysis:  
This problem requires verifying whether the given sides form a right triangle using the Pythagorean Theorem.  
The main focus is on checking if the sides satisfy the theorem.  

Key Concept Explanation:  
A triangle is right if:  
 
where is the longest side (hypotenuse).  

Step-by-Step Solution:  
1. Identify the given sides:  
  -  
  -  
  - (longest side)  
2. Apply the theorem:  
 

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