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Quadrilateral - Online calculator: Area of a quadrilateral



Let us look at each type in turn: The Rectangle the little squares in each corner mean "right angle" A is a four-sided shape where every angle is a 90°.









Sometimes it is called a quadrangle or a tetragon, by analogy to three-sided triangles and polygons with more sides pentagon, hexagon, heptagon, octagon etc.

In other words they "bisect" cut in half each other at right angles.



Or while cleaning the house? Polygon A quadrilateral is a.

Let's pick that option.



A square also fits the definition of a rectangle all angles are 90° , and a rhombus all sides are equal length.



Example: a square is also a rectangle.








Description: So all other quadrilaterals are irregular.

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Views: 1551 Date: 30.01.2023 Favorited: 125 favorites
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A square also fits the definition of a rectangle all angles are 90°and a rhombus all sides are equal length.
Proof for Bretschneider's formulas can be found And it is worth mentioning that it is impossible to find a quadrilateral area given ONLY four sides.

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    +205reps
    Internal angle ( degrees) 90° (for square and rectangle) In geometry a quadrilateral is a four-sided polygon, having four edges (sides) and four corners (vertices). The word is derived from the Latin words quadri, a variant of four, and latus, meaning side.
    By: dasautomobil|||https://www.facebook.com/dasautomobil.hetterix/|||https://twitter.com/F1/status/536498182436700160|||https://www.reddit.com/r/removalbot/comments/foe2ok/0324_2154_die_bundeswehr_hat_keine_k%C3%BChlung/
    +184reps
    A quadrilateral is a polygon having four sides, four angles, and four vertices. The word ‘quadrilateral’ is derived from the Latin words ‘quadri,’ which means four, and ‘latus’, which means side. The above image is an example of a quadrilateral.
    By: clemthecat|||https://www.facebook.com/FrogBerryAcres/photos/a.2163488420620279/2168633680105753/|||https://twitter.com/hollymm74|||https://steamcommunity.com/profiles/76561198138741547/
    +209reps
    quadrilateral: 2. a plane figure having four sides and four angles.
    By: chris2k2|||https://www.facebook.com/chris2k2|||https://twitter.com/chris2k2|||https://www.reddit.com/user/chris2k2
    +282reps
    Properties of Quadrilaterals: A quadrilateral is a four-sided polygon that is bordered by four finite line segments. The term ‘quadrilateral’ is derived from the Latin words ‘quadra’ (four) and ‘Latus’ (sides). A quadrilateral’s four sides may or may not be equal.
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    +279reps
    quadrilateral: 2. a plane figure having four sides and four angles.
    By: Caseydonn|||https://www.facebook.com/Caseydonn|||https://twitter.com/ThatsEarth/status/533740492086059008|||https://www.reddit.com/user/Caseydonn
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