I assume you mean 1 pair of parallel lines, which would describe a trapezoid.
Chat with our AI personalities
a quadrilateral
A quardrilateral with 1 pair of parallel lines and have no equal sides is a trapezium.
trapezoid
Trapezoid
It has 5 faces. The "quadrilateral" part of the name describes the shape of the base of the pyramid. A pyramid has 1 face for every side of the base plus an extra one for the base. Thus a quadrilateral pyramid has a quadrilateral or 4 sided shape for the base and so has 4 + 1 = 5 faces.