The definition of a parallelogram is a four-sided plane with opposite sites which are equal and parallel.
A rectangle is an example of a parallelogram.
a plane figure with four sides, having the opposite sides parallel and equal
Origin of parallelogramFrench parallélogramme from Classical Latin parallelogrammum from Classical Greek parall?logrammon from parall?los, parallel + gramm?, stroke in writing: see gram
A four-sided plane figure with opposite sides parallel.
Origin of parallelogramLate Latin parallēlogrammum from Greek parallēlogrammon from neuter sing. of parallēlogrammos bounded by parallel lines parallēlos parallel ; see parallel . grammē line ; see gerbh- in Indo-European roots.