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8 Cards in this Set
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 Back
Ratio

The quotient when the first number is divided by the second


Proportion

An equation stating that two ratios are equal


AA Similarity Postulate

If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar


SAS Similarity Theorem

If an angle of one triangle is congruent to an angle of another triangle and the sides including those angles are in porportion, then the triangles are similar


SSS Similarity Theorem

If the sides of two triangles are in proportion, then the triangles are similar


Triangle Proportionality Theorem

If a line parallel to one side of a triangle intersects the other two sides, the it divides those sides proportionally


Corollary

If three parallel lines intersect two transversals, then they divide the transversals proportionally.


Triangle AngleBisector Theorem

If a ray bisects an angle of a triangle, then it divides the opposite side into segments proportional to the other two sides
