# Is Ellipse a Conic Section?

Yes, the ellipse is a conic section. It is considered as the closed type of conic section. Based on the angle between the cone and the plane surface, the intersection will produce four different types of conic sections, such as circle, ellipse, parabola, and hyperbola. The shape “ellipse” is formed when the plane surface intersects the cone at an angle with respect to its base. It is defined as the set of points on the plane, in which the sum of the distance from the two fixed points (called foci) is a constant.