# Geometry for Elementary School/Congruence and similarity

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In this section, we will talk about congruence and similarity, which are related to figures that look the same.

## Before you start[edit]

Ask yourself these questions:

- How can one construct a triangle given only three dimensions?
- What are vertically opposite angles?
- How many conditions are there for two lines to be parallel?

If your answer to any of these questions is no, you should check out the previous chapters before you advance any further.