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  2. Isosceles trapezoid - Wikipedia

    en.wikipedia.org/wiki/Isosceles_trapezoid

    Any non-self-crossing quadrilateral with exactly one axis of symmetry must be either an isosceles trapezoid or a kite. [5] However, if crossings are allowed, the set of symmetric quadrilaterals must be expanded to include also the crossed isosceles trapezoids, crossed quadrilaterals in which the crossed sides are of equal length and the other sides are parallel, and the antiparallelograms ...

  3. Kite (geometry) - Wikipedia

    en.wikipedia.org/wiki/Kite_(geometry)

    The cyclic quadrilaterals may equivalently defined as the quadrilaterals in which two opposite angles are supplementary (they add to 180°); if one pair is supplementary the other is as well. [9] Therefore, the right kites are the kites with two opposite supplementary angles, for either of the two opposite pairs of angles.

  4. Trapezoid - Wikipedia

    en.wikipedia.org/wiki/Trapezoid

    An isosceles trapezoid is a trapezoid where the base angles have the same measure. As a consequence the two legs are also of equal length and it has reflection symmetry . This is possible for acute trapezoids or right trapezoids (as rectangles).

  5. Quadrilateral - Wikipedia

    en.wikipedia.org/wiki/Quadrilateral

    Isosceles trapezium (UK) or isosceles trapezoid (US): one pair of opposite sides are parallel and the base angles are equal in measure. Alternative definitions are a quadrilateral with an axis of symmetry bisecting one pair of opposite sides, or a trapezoid with diagonals of equal length. Parallelogram: a quadrilateral with two pairs of ...

  6. British flag theorem - Wikipedia

    en.wikipedia.org/wiki/British_flag_theorem

    The British flag theorem can be generalized into a statement about (convex) isosceles trapezoids. More precisely for a trapezoid with parallel sides and and interior point the following equation holds:

  7. Angelina Jolie Gets Asked 'the Most Insane Question.' Here's ...

    www.aol.com/angelina-jolie-gets-asked-most...

    Larraín, the 48-year-old Chilean filmmaker, has made a name for himself in the U.S. in recent years for directing biopics of famous 20th century women at a crossroads, including 2016's Jackie ...

  8. Right kite - Wikipedia

    en.wikipedia.org/wiki/Right_kite

    A right kite with its circumcircle and incircle. The leftmost and rightmost vertices have right angles. In Euclidean geometry, a right kite is a kite (a quadrilateral whose four sides can be grouped into two pairs of equal-length sides that are adjacent to each other) that can be inscribed in a circle. [1]

  9. 10 best Walmart Advent calendars that haven't sold out yet

    www.aol.com/lifestyle/best-advent-calendars-that...

    We scoured the best Advent calendars you can still shop at Walmart this season.