Area of a Rectangle Enclosed by a Quadratic

This example demonstrates dynamically calculating the area of a rectangle enclosed by a quadratic function. It involves core math concepts like quadratic functions, rectangle area calculation, integral ideas (upper/lower sums or Riemann sums), isosceles triangle properties, and angle calculations. Construction highlights the use of GeoGebra commands/objects such as Segment, Polygon, PointIn, Point, and Text. Suitable for high school mathematics teaching, helping students understand the combination of function graphs and geometric shapes in area calculations and initial calculus concepts.