You can draw an ELLIPSE by using two axes to specify its length and width .
You can choose one of the following methods to draw a ellipse:

If you turn on Isometric Snap (SNAPSTYL) in the Drafting Settings dialog box, ELLIPSE has new option: Isometric. You can use ellipses to represent isometric circle's to simulate 3D on isometric plane.
											  Article ID: 2507
											  Created: November 9, 2021
											  Last Updated: November 9, 2021
											  Author: GstarCAD MY /KW
											
Online URL: https://www.kb2.gstarcad.com.my/article.php?id=2507