http://www.ck12.org Chapter 7. Similarity
7.7 SAS Similarity
Here you’ll learn how to decide whether or not two triangles are similar using SAS Similarity.
What if you were given a pair of triangles, the lengths of two of their sides, and the measure of the angle between
those two 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 SAS Similarity Theorem to decide if two triangles are similar.
Watch This
MEDIA
Click image to the left for more content.CK-12 Foundation: Chapter7SASSimilarityA
Watch this video beginning at the 2:09 mark.
MEDIA
Click image to the left for more content.James Sousa:SimilarTriangles
Watch the second part of this video.
MEDIA
Click image to the left for more content.James Sousa:SimilarTriangles UsingSSSandSAS
Guidance
If we know that two sides are proportional AND the included angles are congruent, then are the two triangles are
similar? Let’s investigate.