Final answer:
Longitude and latitude are two measurements used to signify a location on the Earth's surface. Longitude measures the distance east or west of the prime meridian, and latitude measures the distance north or south of the equator.
Step-by-step explanation:
Longitude and latitude are two measurements used to signify a location on the Earth's surface. Longitude measures the distance east or west of the prime meridian, which runs through Greenwich, England. Latitude measures the distance north or south of the equator.
Both longitude and latitude are measured in degrees, with positive values indicating east and north and negative values indicating west and south.