相似图形

Similar \Sim"i*lar\, a. [F. similaire, fr. L. similis like,
similar. See {Same}, a., and cf. {Simulate}.]
1. Exactly corresponding; resembling in all respects;
precisely like.

2. Nearly corresponding; resembling in many respects;
somewhat like; having a general likeness.

3. Homogenous; uniform. [R.] --Boyle.

{Similar figures} (Geom.), figures which differ from each
other only in magnitude, being made up of the same number
of like parts similarly situated.

{Similar rectilineal figures}, such as have their several
angles respectively equal, each to each, and their sides
about the equal angles proportional.

{Similar solids}, such as are contained by the same number of
similar planes, similarly situated, and having like
inclination to one another.