A parallelogram is a square in i beg your pardon both bag of opposite sides room parallel .

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A parallelogram also has the adhering to properties:

the opposite angles are congruent; opposite sides space congruent; nearby angles room supplementary;

A rectangle is a parallelogram with 4 right angles, so every rectangles are additionally parallelograms and also quadrilaterals. On the various other hand, no all quadrilaterals and also parallelograms space rectangles.

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A rectangle has actually all the properties of a parallelogram, to add the following:

The diagonals room congruent.

A rhombus is a parallel with four congruent sides. The many of rhombus is rhombi . (I love that word.)

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A rhombus has all the nature of a parallelogram, add to the following:

The diagonals crossing at appropriate angles.

A square have the right to be defined as a rhombus i m sorry is also a rectangle – in other words, a parallel with 4 congruent sides and also four ideal angles.

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A trapezoid is a square with specifically one pair of parallel sides. (There may be part confusion about this word relying on which country you"re in. In India and also Britain, they to speak trapezium ; in America, trapezium usually way a quadrilateral with no parallel sides.)

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one isosceles trapezoid is a trapezoid who non-parallel sides space congruent.

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A kite is a quadrilateral with precisely two bag of nearby congruent sides. (This definition excludes rhombi. Part textbooks speak a kite has at least 2 pairs of surrounding congruent sides, for this reason a rhombus is a special situation of a kite.)

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A scalene square is a four-sided polygon that has actually no congruent sides. Three examples are presented below.


You are watching: A quadrilateral with two pairs of congruent consecutive sides


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Venn chart of Quadrilateral group

The adhering to Venn Diagram mirrors the inclusions and also intersections the the various species of quadrilaterals.