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7 Similarity
Chapter Outline
7.1 Ratios and Proportions
7.2 SIMILARPOLYGONS
7.3 SIMILARITY BYAA
7.4 SIMILARITY BYSSSANDSAS
7.5 PROPORTIONALITYRELATIONSHIPS
7.6 SIMILARITYTRANSFORMATIONS
7.7 EXTENSION: SELF-SIMILARITY
7.8 CHAPTER7 REVIEW
In this chapter, we will start with a review of ratios and proportions. Second, we will introduce the concept of
similarity. Two figures are similar if they have the same shape, but not the same size. We will apply similarity to
polygons, quadrilaterals and triangles. Then, we will extend this concept to proportionality with parallel lines and
dilations. Finally, there is an extension about self-similarity, or fractals, at the end of the chapter.