Geometry Construction Navigation Bar Demo

This GeoGebra example demonstrates how to organize geometry-construction steps using a navigation bar, showing multiple fundamental construction relationships within one interactive setup. It focuses on core geometry ideas: constructing segments, creating perpendicular/orthogonal lines, building circles, computing intersection points between circles and lines, and forming a general quadrilateral (polygon) from constructed points. The construction workflow is implemented via GeoGebra commands: Segment to define key segments and points (e.g., A, B), OrthogonalLine to generate perpendicular lines (such as f, g), Circle to create circles (c, c_1), Intersect to obtain intersection points (including C, t1, and other labeled points), and Polygon to connect points into the final quadrilateral/polygon. Suitable for middle and high school geometry lessons, geometry-construction practice, and teacher demonstrations emphasizing step-by-step interactive workflows.