Oblique Cone by n.roach

This example demonstrates the 3D shape and properties of an oblique cone, involving core math concepts like solid geometry, matrices, upper and lower sums (Riemann sums), function graphs, and secant lines. It is constructed using GeoGebra commands such as Intersect, Point, and Cone with objects A, B, a, c, b, making it suitable for high school and above students learning spatial geometry and introductory calculus ideas.