Trapezoid Construction and Function Demonstration

This example demonstrates the geometric construction of a trapezoid and related function graphs using GeoGebra. It involves core mathematical concepts such as polygon construction, piecewise functions, plane figures, and definite integrals. The construction uses commands like Segment, Line, Point, and Polygon, with objects A, B, f, C, g, D, poly1, a, b, d, c. It is suitable for high school mathematics teaching, combining geometric drawing with function demonstrations.