Properties of Similar Polygons - Concept

Concept Concept (1)

Two polygons are similar if their corresponding angles are congruent and the corresponding sides have a constant ratio (in other words, if they are proportional). Typically, problems with similar polygons ask for missing sides. To solve for a missing length, find two corresponding sides whose lengths are known. After we do this, we set the ratio equal to the ratio of the missing length and its corresponding side and solve for the variable.

Sample Sample Problems (2)

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Properties of Similar Polygons - Problem 1
Problem 1
How to identify if two quadrilaterals are similar, given three angles and four sides.
Properties of Similar Polygons - Problem 2
Problem 2
How to find missing sides of similar triangles that share a side.