| Answer | Crossword Clue |
|---|---|
| parallelograms | PARALLELOGRAM, a quadrilateral with opposite sides parallel and equal |
| parallelogram | a quadrilateral with opposite sides parallel and equal |
| rhombuses | A parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides |
| trapezia | any rectilinear quadrilateral plane figure not a parallelogram; such a figure of which no two sides are parallel; such a figure having two parallel and two nonparallel sides |
| rhomboids | A quadrilateral of which only the opposite sides and angles are equal |
| rhomboid | oblique-angled parallelogram with only the opposite sides equal |
