<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
Skip Navigation
Our Terms of Use (click here to view) have changed. By continuing to use this site, you are agreeing to our new Terms of Use.

SAS Similarity

Triangles are similar if two pairs of sides are proportional and the included angles are congruent.

Atoms Practice
Estimated6 minsto complete
Practice SAS Similarity
This indicates how strong in your memory this concept is
Estimated6 minsto complete
Practice Now
Turn In
SAS Similarity

Notes/Highlights Having trouble? Report an issue.

Color Highlighted Text Notes
Please to create your own Highlights / Notes
Show More


AA Similarity Postulate

If two angles in one triangle are congruent to two angles in another triangle, then the two triangles are similar.


Congruent figures are identical in size, shape and measure.


To reduce or enlarge a figure according to a scale factor is a dilation.


SAS means side, angle, side, and refers to the fact that two sides and the included angle of a triangle are known.

SAS Similarity Theorem

The SAS Similarity Theorem states that if two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar.

Similarity Transformation

A similarity transformation is one or more rigid transformations followed by a dilation.

Image Attributions

Explore More

Sign in to explore more, including practice questions and solutions for SAS Similarity.
Please wait...
Please wait...