Basic Geometric Construction of a Circle

This applet demonstrates the basic geometric construction of a circle using GeoGebra. By defining a center point A and a radius length r, the Circle command draws circle c. The construction also incorporates Point and Segment commands to create point B on the circle and segment f connecting the center to that point, visually representing the radius. This illustrates the fundamental relationships among circles, points, and line segments, making it an excellent tool for introducing students to core geometric concepts and the power of dynamic geometry software in elementary geometry education.