Rectangles, squares, and rhombuses are all parallelograms.
Origin of PARALLELOGRAM
Late Latin or Greek; Late Latin parallelogrammum, from Greek parallēlogrammon, from neuter of parallēlogrammos bounded by parallel lines, from parallēlos + grammē line, from graphein to write — more at carve
First Known Use: 1570
PARALLELOGRAM Defined for Kids
Definition of PARALLELOGRAM for Kids
: a plane figure with four sides whose opposite sides are parallel and equal