| A | B |
|---|
| quadrilaterals | has 4 sides; 4 vertices |
| parallelograms | quadrilaterals with 2 pairs of parallel sides |
| rectangles | parallelogram with all 90 degree angles |
| squares | rectangle with 4 congruent sides |
| rhombus | parallelogram with all congruent sides |
| trapezoids | parallelogram with only one pair of parallel sides |
| perimeter | the distance around an object; find by adding all the sides |
| area | the amount of surface within a closed figure; find this by multiplying the base times the height |
| rhombii | plural form of rhombus |
