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Two geometrical objects are called similar if they both have the same shape, or one has the ... Similar triangles[edit]. In geometry two triangles, △ABC and ...


Similar Triangles. Two triangles are Similar if the only difference is size (and possibly the need to turn or flip one around). These triangles are all similar: triangles ...


Sal explains what it means for triangles to be similar, and how this follows from the definition of similarity.


Sal solves two problems where a missing side length is found by proving that triangles are similar and using this to find the measure.


Given two similar triangles and some of their side lengths, find a missing side length.


Definition and properties of similar triangles - testing for similarity.


Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion . In other words, similar triangles ...


The use of similar triangles appears in the solutions to many different types of mathematical problems. The good news is that there are often several different ...

Sep 27, 2011 ... How do similar triangles work? Watch this video to find out how to use proportions to solve for similar triangles.