A trapezoid is a four-sided figure (or "quadrilateral") with only one pair of parallel sides.
A geometric shape with only one set of parallel sides is a trapezoid.
A polygon is a 2 dimensional shape with three or more sides that is closed in. A trapezoid is a four sided shape with only one pair of parallel sides. Therefore all trapezoids are polygons.
If the shape (a quadrilateral) has only 2 parallel sides, it is a trapezoid (UK trapezium).A shape with four sides and two sets of parallel sides is a parallelogram (rectangle, square, rhomboid, rhombus) because these figures have four sides and two sets of parallel sides.
Any shape that is not a triangle may have 2 parallel sides, although regular polygons only have parallel sides when the number of sides is even. For a quadrilateral, a trapezoid(UK trapezium) has 1 set of parallel sides and a parallelogram (either a rhombus, rectangle, or square) has 2 sets of parallel sides.
A trapezoid is a four-sided figure (or "quadrilateral") with only one pair of parallel sides.
Only one quadrilateral has only two parallel sides: the trapezium.
A four-sided shape in which only two sides are parallel is called a trapezoid. All two-dimensional, four-sided shapes are known as quadrilaterals.
A Trapezium
A four-sided shape is a quadrilateral. With only one pair of parallel sides, it would be called a trapezoid (UK trapezium).
A quadrilateral (four-sided shape) is a parallelogram if it has two sets of parallel sides. If it has only one set, it is a trapezoid, also known as a trapezium.
If it only has 2 parallel sides, then it is a trapezoid (called a trapezium outside of North America).If it has 2 pairs of parallel sides, then it is a parallelogram.
The name of the four-sided shape that has only one pair of parallel sides is known as a trapezoid. The other two sides are not parallel to each other. There are many other shapes with more than four sides that have one pair of parallel sides but these typically don't have special names. So assuming the question is only referring to four-sided figures, the answer is a trapezoid.
No shape has only 1 parallel side. A trapezoid is a 4-sided shape, or quadrilateral, with only 2 parallel sides; it does not necessarily have to have 2 right angles. (In the UK a trapezoid is called a trapezium.) In North America, a trapezium is a quadrilateral with 0 (no) parallel sides.
a square! * * * * * That is true only as a very special case.
Any four-sided shape is a Quadrilateral. Square, Rectangle, Parallelogram, rhombus, trapezoid etc. It may have no parallel sides as in a kite, 1 parallel side as in trapezoid or 2 parallel sides as in parallelogram.
For a 4-sided polygon (a quadrilateral), the shape is a trapezoid (trapezium in the UK).*The question was copied in and omitted the "4 sided" restriction. There are innumerable irregular polygons that have a single pair of parallel sides, those that have 5 or more sides.