A rectangle, by definition is an irregular quadrilateral. It has two pairs of parallel sides.
Infinitely many. Every regular polygon with 2n sides has n pairs of parallel sides. Then there are irregular polygons which can have parallel sides. And there are also irregular shapes which have parallel sides.
A quadrilateral is any figure with 4 sides. ("quad" = 4, "latus" = side). It doesn't have to have any parallel lines. If it happens to have two sides that are parallel, then it's a trapezoid. If it happens to have two pairs of parallel sides, then it's a parallelogram. Common parallelograms are rectangles, squares, and kites.
A quadrilateral doesn't have to have any pairs of parallel lines. It depends what kind of quadrilateral you are talking about... Rectangle- Yes (2 pairs) Square- Yes (2 pairs) Trapezoid- Yes (1 pair) Parallelogram- Yes (2 pairs) Rhombus- Yes (2 pairs)
the same as a regular quadrilateral, 4
A rectangle, by definition is an irregular quadrilateral. It has two pairs of parallel sides.
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A trapezoid is a quadrilateral with a set of parallel lines. Because it is a quadrilateral, it has four angles.
A regular pentagon has no parallel lines, but you can create an irregular pentagon with one pair of parallel lines if you make a traditional 'house' shape with parallel 'walls'.
A regular pentagon has no parallel lines, but you can create an irregular pentagon with one pair of parallel lines if you make a traditional 'house' shape with parallel 'walls'.
Infinitely many. Every regular polygon with 2n sides has n pairs of parallel sides. Then there are irregular polygons which can have parallel sides. And there are also irregular shapes which have parallel sides.
A trapezoid is a four sided quadrilateral that has only one pair of opposite parallel lines of different lengths.
A quadrilateral has 4 sides, 2 in which never intersect. Therefore, the lines that don't intersect are called parallel. There are 4 parallel sides but has 2 pairs of parallel sides.
regular pentagons have no parrallel lines. irregular pentagons might but it depends. :))
If it has 2 pairs of parallel lines it is a parallelogram, if it is a quadrilateral. If there is not restrictions on the number of sides, then there are many answers
A regular decagon will have 5 pairs of parallel sides, however, irregular decagons can have no parallel sides.