Euclid: The Game Level 14 — Constructing a Circle in GeoGebra

This example demonstrates how to complete Euclid: The Game (Level 14) by constructing a circle from given geometric information, highlighting the practical “build a figure from points/constraints” approach. The main mathematical ideas are the definition of a circle (center and radius), the relationship between points and a circle, and the concept of geometric construction with dependency among objects. From the construction summary, the key GeoGebra step is using the command Circle with objects A, B, and the parameter/measure c to determine the radius and then generate the circle. It is suitable for middle to high school geometry practice, GeoGebra-based construction exercises, and learners who want to strengthen skills in geometric modeling and object dependencies.