So all other quadrilaterals are irregular.

It's in the quadrilateral shape, but not any specific - it's neither a rectangle, nor a trapezoid.

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Views: 4330 Date: 29.04.2022 Favorited: 41
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That's the case in which our quadrilateral area calculator is particularly useful.
They should add to 360° Types of Quadrilaterals There are special types of quadrilateral: Some types are also included in the definition of other types!
Also opposite angles are equal angles "A" are the same, and angles "B" are the same.

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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.
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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.
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quadrilateral: 2. a plane figure having four sides and four angles.
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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.