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  1. Parallelogram - Math is Fun

    A Parallelogram is a flat shape with opposite sides parallel and equal in length. Angle A and angle B add up to 180°, so they are supplementary angles. Play with a Parallelogram: NOTE: …

  2. Parallelogram - Definition, Types, Properties, Shapes, Examples

    In a parallelogram, the opposite sides are parallel to each other. Here, AB || CD and AC || BD. The opposite sides of a parallelogram are equal in length. Here, AB = CD and AC = BD. The …

  3. Parallelogram - Shape | Definition | Formulas, Properties, Examples

    A parallelogram is defined as a quadrilateral in which both pairs of opposite sides are parallel and equal. The angle between the adjacent sides of a parallelogram may vary but the opposite …

  4. Parallelogram Definition - BYJU'S

    A parallelogram is a two-dimensional geometrical shape whose sides are parallel to each other. It is a type of polygon having four sides (also called quadrilateral), where the pair of parallel …

  5. Parallelogram | Definition, Properties, Area, & Examples | Britannica

    Sep 27, 2025 · A parallelogram is a four-sided plane figure in which both pairs of opposite sides are parallel and equal. It is a quadrilateral in which the opposite angles are equal and the …

  6. Parallelogram | Properties, Formulas, Types, and Theorem

    Jul 23, 2025 · A parallelogram is a two-dimensional geometrical shape whose opposite sides are equal in length and are parallel. The opposite angles of a parallelogram are equal in measure …

  7. Parallelogram - Wikipedia

    In Euclidean geometry, a parallelogram is a simple (non- self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and …

  8. Parallelogram - Definition, Properties, Types, and Formulas

    Nov 11, 2025 · A parallelogram is a quadrilateral (a polygon with four sides) in which each pair of opposite sides is both parallel and equal in length. This specific pairing gives the shape its …

  9. Parallelograms. Properties, Shapes, Sides, Diagonals and Angles …

    Properties, Shapes, Sides, Diagonals and Angles-with examples and pictures. A parallelogram is a quadrilateral made from two pairs of intersecting parallel lines. There are several rules …

  10. Parallelogram - Definition, Types, and Examples

    A parallelogram is a special quadrilateral with both pairs of opposite sides parallel as shown in the figure below. Notice that the opposite sides that are parallel lines are shown using the same …