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

    A line segment joining one corner to another but is not an edge is called a diagonal. In other words, a diagonal is a line that connects the opposite vertices of a polygon. Learn the …

  2. 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.

  3. 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 edge. Informally, any sloping line is called diagonal.

  4. Diagonals - GeeksforGeeks

    Jul 24, 2025 · What are Diagonals? Diagonal is a straight line connecting opposite vertices of any polygon is called the diagonal of the polygon. The length of the diagonal of the polygon is …

  5. DIAGONAL Definition & Meaning - Merriam-Webster

    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.

  6. Diagonal Definition (Illustrated Mathematics Dictionary)

    Illustrated definition of Diagonal: Generally means corner to corner. In Geometry: a line segment that goes from one corner to another, but...

  7. The Ultimate Guide to Diagonals in Geometry

    May 16, 2025 · A diagonal is typically defined as a line segment that connects two non-adjacent vertices in a polygon or polyhedron. Its origins can be traced back to ancient Greek geometry …

  8. Diagonals - Definition, Examples, Quiz, FAQ, Trivia

    A diagonal is a straight line that connects two non-adjacent corners (vertices) in a polygon. In simpler terms, it's a line that goes across a shape from one corner to another corner that isn't …

  9. Diagonal: Definition and Examples - EDU.COM

    A diagonal is a line segment that connects two non-adjacent vertices (or corners) of a polygon. In simpler terms, it joins two corners that aren't already connected by an edge of the shape.

  10. 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.