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similar polygons

When polygons have the same shape but may be different in size the are called

sometimes

2 similar triangles are always sometimes or never congruent

scale factor

The ratio of the lengths of two corresponding sides of two similar polygons or two similar solids

congruent

If polygons are similar and the scale factor is 1:1 then they are

always

Congruent triangles are always sometimes or never similar

always

Equilateral triangles are always sometimes or never similar

polygons in which their corresponding angles are congruent and the measures of their corresponding sides are proportional.

What are similar polygons?