| A | B |
|---|
| Polygon | closed figure with straight lines |
| quadrilateral | 4-sided polygon |
| parallelograms | quadrilaterals with 2 sets of parallel lines |
| rectangles | parallelograms with 4 right angles (90 degrees) |
| squares | parallelogram with all congruent sides and all right angles |
| rhombus | parallelogram with all equal sides |
| trapezoids | quadrilateral with only 1 set of parallel sides |
| perpendicular | lines that meet or cross and form right angles |
