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lesson 15
1 hour

The Angle-Angle (AA) Criterion for Two Triangles to Be Similar


Description

In Lesson 4, students learned that the triangle side splitter theorem is an important theorem because it is the central ingredient in proving the AA criterion for similar triangles. In this lesson, this statement is substantiated by using the theorem (in the form of the dilation theorem) to prove the AA criterion.

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Credits

From EngageNY.org of the New York State Education Department. Geometry Module 2, Topic C, Lesson 15. Available from engageny.org/resource/geometry-module-2-topic-c-lesson-15; accessed 2015-05-29.
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