Latitude is a distance north or south of the equator. We measure this distance in degrees. Latitude is one of the lines of latitude and longitude that are used to locate positions on earth. The equator is the line that divides the earth into northern and southern hemisphere.
In the figure below we show a position of 45 degrees north latitude
Notice that a 45 degrees latitude is halfway from between the equator and the north pole. Canada and France are located about 45 degrees north latitude.