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similar figures
Figures that have the same shape but not necessarily the same size. Corresponding Angles are Congruent, Corresponding Sides are Proportional.
Similarity Statement
A statement asserting that two figures are similar
proportion
1. The relationship of one thing to another in size, amount, etc.
scale factor
the ratio of the lengths of two corresponding sides of two similar polygons
AA Similarity Postulate
If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.
SSS Similarity Theorem
If the corresponding side lengths of two triangles are proportional, then the triangles are similar.
SAS Similarity Theorem
if two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar
45-45-90 triangle
1:1:√2
30-60-90 triangle
1:√3:2
