CK-12 Geometry Concepts

(Elliott) #1

http://www.ck12.org Chapter 7. Similarity


7.6 SSS Similarity


Here you’ll learn how to decide whether or not two triangles are similar using SSS Similarity.


What if you were given a pair of triangles and the side lengths for all three of their sides? How could you use this
information to determine if the two triangles are similar? After completing this Concept, you’ll be able to use the
SSS Similarity Theorem to decide if two triangles are similar.


Watch This


MEDIA


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CK-12 Foundation: Chapter7SSSSimilarityA


Watch this video beginning at the 2:09 mark.


MEDIA


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James Sousa:SimilarTriangles


Watch the first part of this video.


MEDIA


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James Sousa:SimilarTriangles UsingSSSandSAS


Guidance


If you do not know any angle measures, can you say two triangles are similar? Let’s investigate this to see.


Investigation: SSS Similarity


Tools Needed: ruler, compass, protractor, paper, pencil

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