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  1. Diagonal - Wikipedia

    In geometry, a diagonal is a line segment joining two vertices of a polygon or polyhedron, when those vertices are not on the same …

  2. DIAGONAL Definition & Meaning - Merriam-Webster

    Nov 2, 2026 · The meaning of DIAGONAL is joining two vertices of a rectilinear figure that are nonadjacent or two vertices of a …

  3. DIAGONAL | English meaning - Cambridge Dictionary

    Draw a diagonal line going from one corner to the other. A diagonal line in a circle is often used as a symbol to show that certain …

  4. What is a Diagonal - Meaning, Examples | Diagonal Line

    Since a diagonal is a line segment joining non-adjacent vertices or corners, the shape of a diagonal is that of a straight line. The …

  5. DIAGONAL | definition in the Cambridge English Dictionary

    Draw a diagonal line going from one corner to the other. A diagonal line in a circle is often used as a symbol to show that certain …

  6. Diagonal - Simple English Wikipedia, the free encyclopedia

    Diagonal is a kind of straight line. A diagonal line does not go straight up and down, or across left and right. It is a line that connects …

  7. Diagonal Calculator

    Choose the known values, enter them, and calculate the diagonal of rectangles, squares, or other shapes instantly and accurately. …

  8. What Is a Diagonal in Math? A Kid-Friendly Definition

    May 12, 2021 · In geometry, a diagonal is a straight line that connects two corners (or vertices) of a shape, but not ones that are next …

  9. Diagonals - GeeksforGeeks

    Jul 24, 2025 · Diagonals in math are defined only for lateral shapes, or the shapes that have corners, such as Squares, Rectangles, …

  10. Diagonal

    For a polyhedron, a diagonal is a line segment joining two vertices that are in different faces. The end points of the diagonal share no …