| A | B |
|---|
| proportion | an equation stating two ratios are equivalent |
| scale factor | the ratio of corresponding sides in two similar figures |
| congruent figures | two shapes that have the exact same shape and the exact same size |
| similar figures | two figures that have the same shape, but not necessarily the same size |
| congruent | equal in measure |
| corresponding parts | the angles and sides in similar or congruent figures that match |
| cross products | the product of one numerator and the opposite denominator in a pair of equivalent fractions |
| equivalent fractions | two or more fractions that represent the same number |
| ratio of areas | a ratio of two or more similar shapes that measures the number of square units to cover the surface of the figures |
| ratio of perimeters | a ratio of two or more similar shapes that measures the distance around the figures |
