What is the first thing we should set up in SolidWorks when creating a new model?

The first thing we should do is choose the units we would like to use.

Explanation:

When starting a new CAD file, the first thing we should do is choose the units we would like to use. The Unit system for the active document can be changed or customized using the System Units option on the Status Bar at the bottom of the SolidWorks window.

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