lost ipad

Here is Apple’s advice for lost or stolen devices:

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

Use the Find My app to locate a lost or stolen device – Apple Support

If the Find My iPad feature was enabled prior to it being “misplaced”, then if active, you would stand a good chance of locating it. 

However, if the feature was not activated prior to being misplaced - or the iPad has been inactive for more than 24 hours, the last known location will not be available - and the opportunity to use technical means to recover the iPad have been lost.

Note that Find My can be directly accessed via iCloud from any web browser:

https://icloud.apple.com

More information:

Use Find My iPhone on iCloud.com on your computer - Apple Support

With Find My disabled? Not much. Look for it the old fashioned way. Expect to be buying a replacement, if you cannot locate it.

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