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  1. Diagonal - Wikipedia

    As applied to a polygon, a diagonal is a line segment joining any two non-consecutive vertices. Therefore, a quadrilateral has two diagonals, joining opposite pairs of vertices. For any convex …

  2. What is a Diagonal - Meaning, Examples | Diagonal Line - Cuemath

    A diagonal is a straight line that connects the opposite corners of a polygon through its vertices. In other words, the diagonal of a polygon is a line segment that joins any two non-adjacent corners. Different …

  3. DIAGONAL | English meaning - Cambridge Dictionary

    DIAGONAL definition: 1. A diagonal line is straight and sloping, not horizontal or vertical, for example joining two…. Learn more.

  4. DIAGONAL Definition & Meaning - Merriam-Webster

    5 days ago · The meaning of DIAGONAL is joining two vertices of a rectilinear figure that are nonadjacent or two vertices of a polyhedral figure that are not in the same face. How to use diagonal …

  5. Diagonal - Simple English Wikipedia, the free encyclopedia

    In mathematics, "diagonal" has different meanings. For example, in geometry a diagonal is any line that goes between the corners of a polygon. So a square has two diagonals, and a five-sided shape has …

  6. What is a Diagonal - Definition, Formula, and Examples

    1 day ago · A diagonal joins two non-adjacent vertices of a polygon. Learn what a diagonal is, the n(n−3)/2 formula for counting them, and worked examples.

  7. What Is Diagonal in Math? Definition, Solved Examples, Facts

    A diagonal is a line segment connecting the opposite vertices or the non-adjacent vertices of a polygon. Learn about the diagonals of polygons, examples, & more.

  8. Diagonal of Quadrilateral: Properties, Formulas & Examples

    Master diagonal of quadrilateral with our complete guide. Learn properties, formulas, types & real-world applications. Includes examples & practice.

  9. DIAGONAL | definition in the Cambridge English Dictionary

    DIAGONAL meaning: 1. A diagonal line is straight and sloping, not horizontal or vertical, for example joining two…. Learn more.

  10. Diagonals - GeeksforGeeks

    Jul 24, 2025 · The diagonal of 3-D shapes such as Cubes and Cubiod are discussed below, Diagonals of Cube A cube is a 3-D figure in which all three parameters length, breadth, and height are equal. It …