which combination of figures are similar and why?

To determine which combination of figures are similar, we need to look at the geometric properties of the figures. Two figures are considered similar if their corresponding angles are congruent and their corresponding sides are proportional.

Without specific figures provided, I can give you an example to understand the concept. Let's consider two triangles, Triangle ABC and Triangle DEF.

If the measures of angles ABC and DEF are equal, and the ratios of the lengths of corresponding sides AB:DE, BC:EF, and AC:DF are equal, then triangles ABC and DEF are similar.

Therefore, the combination of figures that are similar would depend on the specific figures given and whether their corresponding angles and side lengths meet the criteria of similarity.