Meaning of Congruence in Geometry

(Video) Difference Between Similar and Congruent Figures

by MashUp Math

When we say two geometric objects, or figures, are congruent, if means they are identical. We can have congruent lines, congruent angles, congruent shapes and so on. There is a difference between similar and congruent. Here is a video that explores this idea further:

This video explores the difference between similarity and congruence, it also gives some examples that might help you understand and distinguish the two. Feeling like you got a handle on this? Try the following problem!

The two penguins are similar because they have the same shape; they are not congruent because the penguin on the left is smaller than the one on the right.