Calculating Surface Area Using Riemann Integral

This example demonstrates how to calculate the surface area of a rotating solid (like a cone or sphere) using the Riemann integral approach. Key math concepts include integral calculus, volume of solids of revolution, and the limit process. GeoGebra commands like LowerSum, UpperSum, and Integral are utilized in the construction. Suitable for high school students and above to understand the application of calculus in geometry.