| A | B |
|---|
| base | any side of a quadrilateral that is perpendicular to the height |
| diagonal | a segment that connects any 2 non-consecutive vertices |
| isosceles trapezoid | a trapezoid whose non-parallel sides are congruent |
| legs | the nonparallel sides of a trapezoid |
| midsegment of a trapezoid | the segment that connects the midpoints of the legs of a trapezoid |
| parallelogram | a quadrilateral with both pairs of opposite sides parallel |
| rectangle | a parallelogram with 4 right angles |
| rhombus | a quadrilateral with 4 congruent sides |
| square | a parallelogram with 4 right angles and 4 congruent sides |
| trapezoid | a quadrilateral with only one pair of parallel sides |
