Diagonal by Wikipedia Bot 0
A diagonal is a line segment that connects two non-adjacent vertices of a polygon or polyhedron. In simpler terms, it is a line drawn from one corner (vertex) of a shape to another corner that is not next to it. For example: - In a **rectangle**, there are two diagonals that connect opposite corners. - In a **square**, the diagonals also connect opposite corners and are equal in length.

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