| A | B |
|---|
| dilation | A transformation that increses or decreases the size of the preimage |
| enlargement | an imiage that is larger than the preimage |
| extremes | In a/b = c/d, the numbers a and d |
| means | In a/b = c/d, the numbers b and c |
| midsegment of a triangle | a segment with endpoints that are the midpoints of two sides of a triangle |
| proportion | an equation of the form a/b = c/d that states that two ratios are equal |
| similarity transformation | when a figure and its transformation image are the same shape but not size |
| cross products | in the proportion a/b = c/d, ad and bc |
| reduction | an image that is smaller than the preimage |
| scale drawing | a drawing that is not the same size as the preimage |
| scale factor | the ratio showing the enlargement or reduction |
| scale model | a physical object that represents a smaller or larger object |
| similar polygons | polygons that are the same shape but not the same size |
| ratio | a comparison of two quantities using division |
