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    What is the formula to find out the diagonal of a square?
    
    
        
    8. What is the formula to find out the diagonal of a square?
    
      - A√4
- √A
- A√2
- 4√4
Answer
    The correct answer is: C) A√2
    Explanation
    The diagonal of a square is equal to 2 times the length of its side (also known as its "A" side length), A√2.
    As a result, the correct formula is A√2.