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Chapter 7

A scale drawing is a drawing with lengths proportional to the object it represents.

Angle-Angle SimilarityIf two angles of one triangle are congruent to two angles of another triangle, then the angles are similar.

A ratio is a comparison of 2 quantities using division.

Two polygons are similar if and only if they have congruent corresponding angles and have proportional corresponding sides.

Interactive Websitehttp://library.thinkquest.org/20991/geo/spoly.html

Video Links:https://www.youtube.com/watch?v=-EEx_8aVw9Ahttps://www.youtube.com/watch?v=-Z0f_RgnAI4

By Ryan McAuliffe