# Keyword Analysis & Research: ellipse lines of symmetry

## Keyword Research: People who searched ellipse lines of symmetry also searched

How many lines of symmetry does an ellipse have?

In general, an ellipse has two lines of symmetry. However, in the special case when an ellipse is a circle, it has infinitely many lines of symmetry.

What is a line of symmetry?

In mathematics and geometry, a line of symmetry is a line that can be drawn on a shape that cuts the shape into two symmetrical parts, meaning that the two parts are identical, or mirror images of one another. The number of lines of symmetry of a specific shape depends on the shape itself.

How do you find the geometry of an ellipse?

One way to approach the geometry of the ellipse is to start with a circle. At any point on a circle centered at the origin, the coordinates (x, y) satisfy the equation where r is the radius of the circle. Here's a drawing of that.

What is the length of the minor axis of mirror symmetry?

The minor axis is the shortest axis of mirror symmetry. a = one half of the length of the major axis (sometimes called the semi major axis) b = one half of the length of the minor axis (sometimes called the semi minor axis ). c = the distance between the center of an ellipse and each focus. The distance between the foci is 2c.