When you are comparing their quality of viewpoint in two word and things, physical objects, ideas, or experiences, you often look at their similarities and their differences. The difference is the opposite of similarity. Both squares and rectangles have four sides, that is a similarity between them. Just because two things share similarities doesn’t mean they are the same.
For Example, Two geometrical objects are called similar if they both have the same shape. Or one has the same shape as the mirror image of the other. More precisely, one can obtain from the other by uniformly scaling (enlarging or reducing). Possibly with additional translation, rotation and reflection. This means that either object can rascal, reposition, and reflected. So as to coincide precisely with the other object. If two objects are similar, each is congruent to the result of a particular uniform scaling of the other. A modern and novel perspective of similarity is to consider geometrical objects similar. If one appears congruent to the other when zooming in or out at some level.