rhombus
A pair of infinitely long parallel lines.
a square or rhombus
A trapezium is a quadrilateral with two parallel lines.
a tetrahedon
A trapezoid has two parallel lines.
A shape with 4 straight lines in which there are 2 parallel and 2 unparallel lines is called a Trapezium.
The four sided shape that has two parallel lines is called a trapezoid. A parallelogram is a four sided shape that has two pairs of parallel lines.
A rectangle
rectangle
rhombus
Octagon
a squareof course
Many quadrilaterals have 2 parallel lines. Trapezoids, for instance.
trapezoid
a square
None