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

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