Here's a breakdown:
* Longitude: Measures how far east or west a location is from the Prime Meridian. 38 degrees longitude means it's 38 degrees east of the Prime Meridian.
* Latitude: Measures how far north or south a location is from the equator. 21 degrees north latitude means it's 21 degrees north of the equator.
This specific location is within the vast and arid Sahara Desert. To give you a better understanding, it's roughly:
* South of: The city of Tripoli, the capital of Libya
* East of: The Libyan border with Tunisia
Keep in mind, this is a very general location. To pinpoint an exact place, you'd need more specific coordinates.