| A | B |
|---|
| square | Parallelogram with 4 right angles and 4 congruent sides |
| rectangle | pParalleleogram with 4 right angles |
| rhombus | Paralleleogram with 4 congruent sides. |
| parallelogram | A quadrilateral with 2 pairs of oppposite sides parallel. |
| trapazoid | A quadrilateral with exactly 1 pair of parallel lines |
| supplementary angles | 2 measurements adding up to 180 degrees |
| complementary angles | 2measurements adding up to 90 degrees |
| triangle | A polygon with 3 sides |
| polygon | A closed plain figure with at least 3 sides |
| obtuse angle | A measurement greater then 90 degrees and less than 180 degrees |
| acute angle | Any angle that measures less than 90 degrees |
| right angle | An angle with a measurement of 90 degrees exactly |
| hexagon | A polygon eith 6 sides |
| heptagon | A polygon with 7 sides |
| octagon | A polygon with 8 sides |
| decagon | A polygon with 10 sides |
