A tri-oval is a shape which derives its name from the two other shapes it most resembles, a triangle and an oval. A triangle is one of the basic Shapes of Geometry: a Polygon with three corners or vertices and three sides or edges which are Line In geometry an oval or ovoid (from Latin ovum, 'egg' is any Curve resembling an egg or an Ellipse. Rather than meeting at sharp, definable angles as the sides of a triangle do, in a tri-oval these angles are instead rounded into smooth curves. This term is most often used to describe the shape of automobile racetracks, such as the Daytona International Speedway. A race track (or 'racetrack' or 'racing track' is a purpose-built facility for Racing of animals (eg Daytona International Speedway is a Superspeedway in Daytona Beach, Florida.