parallelogram and polygon
* * * * *
Wrong. A quadrilateral need not be a parallelogram. A kite is a quadrilateral but nobody with the slightest mathematical knowledge would call a kite a parallelogram!
A quadrilateral and a tetragon are two possible (correctly spelled) answers.
Quadrilateral
quadrilateral
-- quadrilateral -- parallelogram
Quadrilateral
Quadrilateral and parallelogram
A quadrilateral and a tetragon are two possible (correctly spelled) answers.
Quadrilateral.
quadrilateral
Quadrilateral
polygon & quadrilateral * * * * * That is not really true. A trapezoid is a particular type of quadrilateral and that, in turn, is a particular type of polygon. That does not make them alternative names for a trapezoid.
-- quadrilateral -- parallelogram
Quadrilateral
Quadrilateral and parallelogram
quadrilateral, equilateral
oblong shape and quadrilateral
quadrilateral and parallelogram