In this section, we will learn how to construct things. That means drawing things in an accurate way.

## Before you startEdit

Answer these simple questions to check your understanding:

- What is the angle sum of triangles?
- What is the difference between a line segment and a line?
- Apart from being equilateral, what other features do equilateral triangles have?

If your answer to any of these questions is know, you should re-read the first part before advancing any further.