Chapter Eight:  
Similarity

Geometry   Notes

Chapter  8

Section  8.1
Section  8.2
Section  8.3
Section  8.4
Section  8.5
Section  8.6

Geometry Contents

Take notes on the following topics.

Vocabulary

Similar polygons (p. 423) Similar polygons are polygons having corresponding angles congruent and corresponding sides proportional. You denote similarity by ~.

Similarity ratio (p. 423) The similarity ratio is the ratio of the lengths of corresponding sides of similar polygons.

Golden rectangle, Golden ratio (p. 425) A golden rectangle is a rectangle that can be divided into a square and a rectangle that is similar to the original rectangle. The golden ratio is the ratio of the length of a golden rectangle to its width. The value of the golden ratio is about 1.62.