A parallel is a square in which both bag of opposite sides space parallel .
A parallelogram also has the adhering to properties:opposite angles space congruent; the contrary sides are congruent; nearby angles room supplementary;
A rectangle is a parallelogram with four right angles, so all rectangles are likewise parallelograms and quadrilaterals. ~ above the other hand, no all quadrilaterals and also parallelograms space rectangles.
A rectangle has all the properties of a parallelogram, plus the following:The diagonals are congruent.
A rhombus is a parallelogram with 4 congruent sides. The many of rhombus is rhombi . (I love the word.)
A rhombus has actually all the properties of a parallelogram, plus the following:The diagonals crossing at right angles.
A square can be defined as a rhombus i beg your pardon is additionally a rectangle – in other words, a parallel with four congruent sides and also four best angles.
A trapezoid is a square with specifically one pair that parallel sides. (There may be part confusion about this word depending upon which nation you"re in. In India and also Britain, they speak trapezium ; in America, trapezium usually method a quadrilateral with no parallel sides.)
an isosceles trapezoid is a trapezoid whose non-parallel sides are congruent.
A dragon is a quadrilateral with precisely two pairs of surrounding congruent sides. (This meaning excludes rhombi. Some textbooks say a kite contends least two pairs of nearby congruent sides, for this reason a rhombus is a special situation of a kite.)
A scalene square is a four-sided polygon that has no congruent sides. Three examples are displayed below.
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Venn diagram of Quadrilateral group
The following Venn Diagram mirrors the inclusions and intersections that the various types of quadrilaterals.