select all that apply Polygons must have which of the following characteristics to be considered similar? A 2:1 correspondence in vertices. Corresponding sides are equal. Both polygons are the same shape. Both polygons are the same size. Corresponding sides are proportional.

Polygons must have the following characteristics to be considered similar: 1. Corresponding sides are equal. 2. Both polygons are the same shape 3. Both polygons are the same size 4. Corresponding sides are proportional. The similarity of a polygon does not necessarily of the same size for as long as the proportionality of their sides are the same and equal.