An ellipse is a shape like a flattened circle.
An ellipse has some important dimensions: the major axis and the minor axis, which when halved give the semi-major axis and semi-minor axis. It also has an area, which is the amount of space contained by an ellipse.
This widget allows you to find the semi-major axis, semi-minor axis, major axis, minor axis and area of an ellipse.
Learn About Ellipse Geometry
Draw an ellipse by:
- Clicking on the canvas, or
- Entering both the semi-major and semi-minor axis or the major and minor axis.
Dimensions of the Ellipse
= 2 × semi-major axis
= 2 × semi-minor axis
= π × semi-major axis × semi-minor axis