## GeoGebra Tutorial 3 – Constructing a Square

This is the third tutorial of the **GeoGebra Intermediate Tutorial Series **and the fourth part of the** GeoGebra Basic Construction Series**. If this is your first time to use GeoGebra, I strongly suggest that you read the GeoGebra Essentials Series. This tutorial, answers the following problem using GeoGebra.

**Problem:** How will you draw an equilateral triangle without using the Regular polygon tool?

In this tutorial, we mimic compass and straightedge construction using the Circle tool, the Parallel Line tool, the Perpendicular Line tool of GeoGebra to construct a square instead of using the Regular Polygon tool. We will also reinforce the use of the Angle tool, this time, learn how to use it to measure angle using three points. » Read more