| A | B |
|---|
| angle less than 90 degrees | acute |
| 90 degree angle | right |
| angle greater than 90 degrees | obtuse |
| triangle with two identical length sides | isoscelese |
| triangle with three identical length sides | equilateral |
| any four sided figure | quadrilateral |
| tool used for measuring angles | protractor |
| a five sided figure | pentagon |
| a six sided figure | hexagon |
| an eight sided figure | octagon |
| a polygon with all sides the same length | regular |
| a quadrilateral with one pair of parallel lines | trapezoid |
| a quadrilateral with two pair of parallel sides and four equal length sides | rhombus |
| a rhombus with right angles | square |
| any quadrilateral with with two pairs of parallel sides | parallelogram |
| any parallelogram with right angles | rectangle |
| the total number of degrees in a triangle | 180 |
| the total number of degrees in a quadrilateral | 360 |
