# Difference between oval and ellipse.

The simplest mathematical terms can cause a real headache in a person who is far from the exact sciences. Definitions such as oval and ellipse are confused not only by schoolchildren, but also by quite adults. Let's try to outline the differences between these concepts using simple and accessible expressions, avoiding mathematical terms.

## Definition

Oval - it is a closed elongated geometric figure with a regular shape and special properties. Inscribed in a circle, it has at least 4 extremum points, that is, vertices. If you divide the oval with a straight line along two opposite vertices, then the two segments obtained as a result of this action will be absolutely identical. Ellipse is a closed plane curve, a special case of an oval, which has 4 vertices at the extremum points. The central axis, drawn along two opposite extremum points, contains two focal points equidistant from the vertices. The sum of the distances from the foci to any point on the curve of the ellipse is a constant that is equal to the length of the central axis.