| A | B |
| complementary angles | A pair of angles whose measures add up to 90 degrees. |
| corresponding angles | A pair of angles that have the same relative position in similar figures. |
| corresponding sides | A pair of sides that have the same relative position in similar figures. |
| equivalent ratios | Ratios whose fraction representations are equivalent. |
| image | The figure that results from some transformation of a figure. |
| ratio | A comparison of two quantities somestimes expressed as a fraction. |
| rep-tile | A figure you can use to make a larger, similar version of the original. |
| scale factor | The number used to multiply the lengths of a figure to stretch of shrink it to a similar image. |
| similar | Similar figures have corresponding angles of equal measure and the ratios of each pair of corresponding sides are equivalent. |
| supplementary angles | Two angles that form a straight line. The sum of their angles is 180 degrees. |