A parallel is a quadrilateral in which both bag of the contrary sides space parallel .
A parallelogram additionally has the adhering to properties:the contrary angles are congruent; the contrary sides are congruent; nearby angles room supplementary;
A rectangle is a parallel with four right angles, so all rectangles are also parallelograms and quadrilaterals. ~ above the other hand, no all quadrilaterals and parallelograms room rectangles.
A rectangle has all the nature of a parallelogram, add to the following:The diagonals are congruent.
A rhombus is a parallel with four congruent sides. The plural of rhombus is rhombi . (I love the word.)
A rhombus has all the nature of a parallelogram, to add the following:The diagonals crossing at appropriate angles.
A square deserve to be defined as a rhombus which is likewise a rectangle – in various other words, a parallelogram with 4 congruent sides and four right angles.
A trapezoid is a square with precisely one pair of parallel sides. (There might be part confusion around this word depending on which country you"re in. In India and Britain, they say trapezium ; in America, trapezium usually means a quadrilateral through no parallel sides.)
one isosceles trapezoid is a trapezoid whose non-parallel sides room congruent.
A kite is a quadrilateral with precisely two pairs of nearby congruent sides. (This definition excludes rhombi. Part textbooks to speak a kite has at least two pairs of nearby congruent sides, so a rhombus is a special situation of a kite.)
A scalene quadrilateral is a four-sided polygon that has actually no congruent sides. Three examples are presented below.
You are watching: One pair of opposite sides that are parallel
See more: How To Say Daddy In Different Languages ? Say Father In Many Languages
Venn diagram of Quadrilateral category
The adhering to Venn Diagram mirrors the inclusions and intersections the the various varieties of quadrilaterals.