| A | B |
|---|
| ratio | a comparison of two quantities by division |
| rate | a ratio that compares two quantities measured in different units |
| proportion | an equation stating that two ratios are equivalent |
| similar figures | figures that have the same shape but not the same size |
| unit rate | a rate in which the second quantity in the comparison is one unit |
| equivalent ratios | ratios that name the same comparison |
| cross product | the product of two numbers on the diagonal when comparing two ratios |
| cross product rule | in the proportion a/b = c/d, the cross products a x d and b x c are equal |
| corresponding sides | matching sides of two or more polygons |
| corresponding angle | matching angles of two or more polygons |
| scale | the ratio between two sets of measurement |
| scale factor | the ratio used to enlarge or reduce similar figures |
| scale drawing | a proportional drawing of an object |
| scale model | a proportional model of a three dimensional object |
| indirect measurement | a method of using proportions to find an unknown length or distance in similar figures |
