The types of conic sections are circles, parabolas, hyperbolas, and ellipses.

Circles, parabolas, ellipses, and hyperbolas are all conic sections. Out of these conic sections, the circle and ellipse are the ones which define a closed curve.

The conic sections of a building are the parts that take a conic shaped design some examples would be the Berlin Reichstag Dome and the Sony Center in Berlin.

The only thing I can think of is a lobbed shot at the basket will approximately follow the path of a parabola, which is one of the conic sections.

Circles, ellipses, parabolas, and hyperbolas are called conic sections because they can be obtained as a intersection of a plane with a double- napped circular cone.

If the plane passes through vertex of the double-napped cone, then the intersection is a point, a pair of straight lines or a single line. These are called degenerate conic sections.

Because they are sections of a cone or a cone shaped object.