Geometry for Elementary School/Construction

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

Before you start

Answer these simple questions to check your understanding:

1. What is the angle sum of triangles?
2. What is the difference between a line segment and a line?
3. 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.

Table of contents

• Our tools: Ruler and compasses
• Constructing equilateral triangle
• Copying a line segment
• Copying a triangle
• Copying an angle
• Constructing a triangle
• Why the constructions are not correct?
• Bisecting an angle
• Bisecting a segment