Inscribed Polygon and Segment Construction in Circle

This example demonstrates how to construct an inscribed polygon within a circle and draw related line segments. Core mathematical concepts include properties of inscribed polygons, intersection relationships between segments and the circle, and coordinate relationships between points and polygon vertices. Construction: Use Circle command to draw the base circle, Point command to place points on the circle, Polygon command to connect vertices forming poly1, and Segment command to draw multiple line segments (l, m, n, I, q, r, s) to explore geometric relationships. Suitable for middle school mathematics chapters on circles, useful for understanding positions between circles and polygons, properties of chords, and geometric proof assistance.