Practical Autodesk AutoCAD 2021 and AutoCAD LT 2021
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Understanding the coordinate system

Understanding the coordinate system is essential to understanding the way AutoCAD works. In AutoCAD, you can assign length and angles, as well as coordinate values, to make drawings, but to do all this, knowledge of the coordinate system is essential.

Primarily, these are two types of coordinate systems that we will use to make geometries in AutoCAD, and they are Cartesian and polar coordinates. First let's have a look at what Cartesian coordinates are.