Dans un carré, diagonale d = côté × √2

Sat, 02 May 2026 18:48:25 +0000

The Mathematical Secret of the Square: Diagonal Formula d = c × √2 Explained When studying geometry, one of the most elegant and fundamental relationships is found in the diagonal of a square. In LaTeX notation, this classic formula is written as:
d = c × √2,
where:
- d is the length of the diagonal,
- c is the length of a side of the square,
- √2 (the square root of 2) represents an irrational constant approximately equal to 1.414. This simple yet powerful equation reveals a deep harmony in geometric shapes and has wide applications in architecture, design, engineering, and everyday problem-solving. ### Understanding the Diagonal in a Square