| A | B |
|---|
| point | exact location |
| compass | tool used for making circles |
| right angle | an angle measuring 90 degrees |
| triangle | 3 sided polygon |
| perpendicular | lines intersecting at 90 degrees |
| similar | same shape - may or may not have the same size |
| congruent | exactly the same size and shape |
| vertex | the common endpoint of 2 rays |
| protractor | a tool that measures the degrees in an angle |
| complementary angles | two angles whose measure adds to 90 degrees |
