A quadrilateral with only one pair of parallel lines is called a trapezoid.
A trapezoid
A trapezoid has exactly one pair of parallel lines
A trapezoid is a quadrilateral with two parallel sides. One on the top, and one on the bottom.
An irregular quadrilateral can have zero, one, or two pairs of parallel lines, but typically it has no parallel lines. By definition, an irregular quadrilateral does not have equal sides or angles, which means it does not conform to the properties of specific types of quadrilaterals like rectangles or parallelograms that have parallel sides. Thus, the most common scenario for an irregular quadrilateral is having no parallel lines at all.
A quadrilateral with only one pair of parallel lines is called a trapezoid.
A trapezoid
A trapezoid has exactly one pair of parallel lines
There are two definitions for trapezoids. One defines them as a quadrilateral with at least two parallel lines, which would include parallelograms. The other strictly defines trapezoids as quadrilaterals with exactly two parallel lines.
It is a quadrilateral with exactly 2 pairs of parallel sides.
TRAPEZOID
one
I don't think this is possible. there is not a quadrilateral with these qualities. If it is a quadrilateral, it will automatically have parallel lines, but there is not one that has both. The closest one would be the trapezoid, with a set of parallel lines, but no right angle. The square and rectangle have two sets of parallel lines and 4 right angles.
A trapezoid is a quadrilateral with two parallel sides. One on the top, and one on the bottom.
An irregular quadrilateral can have zero, one, or two pairs of parallel lines, but typically it has no parallel lines. By definition, an irregular quadrilateral does not have equal sides or angles, which means it does not conform to the properties of specific types of quadrilaterals like rectangles or parallelograms that have parallel sides. Thus, the most common scenario for an irregular quadrilateral is having no parallel lines at all.
no? because in order to be a quadrilateral you need 4 sides. a pair of parallel lines in just 2 lines. parallel lines also never touch.
Fjrj