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Learn what it means for two figures to be similar, and how to determine whether two figures are similar or not. Use this concept to prove geometric theorems and solve some problems with polygons.

Learn what it means for two figures to be similar, and how to determine whether two figures are similar or not. Use this concept to prove geometric theorems and solve some problems with polygons.

Similar polygons Learn Corresponding points and sides of scaled shapes Relating side lengths in similar figures

We were able to use similarity to figure out this side just knowing that the ratio between the corresponding sides are going to be the same. Now, let's do this problem right over here.

Relate side lengths within and between similar polygons and dilated shapes using proportion equations. Created by Sal Khan.

What is the relationship between similarity and geometric transformations? Similarity is about two shapes having the same proportions. Two shapes can be similar even if one is bigger or smaller than …

Given a pair of similar figures, write proportion statements that relate a side with an unknown length to known side lengths, using both ratios within and between the similar shapes.

In this video, we explore the concept of similar figures—what it means for shapes to have the same form but different sizes, and how this differs from congruency, where both shape and size match exactly.

Recognize when two- and three-dimensional figures are similar and solve problems, including those in context, involving attributes of similar geometric figures.