How can I locate my IPAD 6th

Click on this link to read how to "Use the Find My app to locate a lost or stolen device" --> https://support.apple.com/HT210515

The chances of locating a device depend upon which features you selected in:

Set up Find My on your iPhone, Mac, and other devices - https://support.apple.com/HT210400#enablefindmy

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support