411 REFERENCE · Wikibooks
Geometry for Elementary School/Construction
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Coordinates Our tools: Ruler and compasses
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:
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.
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