LATITUDE AND LONGITUDE PRACTICE
A circle such as around the globe is 360 degrees (°). Each degree may be further
divided into 60 minutes (') and each minute into 60 seconds (").
A grid system or graticule is formed in this manner using a base of two perpendicular circles. Latitude measures
the number of degrees north or south of the equator which has a latitude of 0°.
Lines of latitude (parallels) run east-west around the globe and are used to measure
distances NORTH and SOUTH of the equator.
Since the equator is 0°, the latitude of the north pole, 1/4 of the way around the globe going
in a northerly direction, would be 90°N. This is the highest latitude possible. All latitudes except for the
equatore must be designated either north or south of the equator. The longitude coordinate is also needed, then, to
designate one particular point on the earth's surface. Longitude measures the number of degrees EAST
or WEST of the Prime Meridian which runs through Greenwich, England. The Prime
Meridian has a longitude of 0°. Lines of longitude (meridians) running
north-south around the globe measure distances EAST and WEST
of the Prime Meridian.
Directly on the opposite side of the earth from the prime meridian is located the 180° meridian.
This is the highest longitude possible. All other longitudes must be designated either eastor west of the Prime Meridian.
All meridians converge at the poles so exactly at the poles no longitude is given; the longitude of the poles is left blank.
It is required that latitude be given before longitude (generally preferred in non-computer applications).
Lines of latitude and longitude represent true geographic east-west and north-south directions
despite the fact that on some maps the grid lines may be curved due to the problems of
projecting the spherical surface of the earth onto the flat surface of a map. When giving
the latitude and longitude coordinates, be sure to identify if the location is
north or south, east or west of the base or reference lines!! At these lines, no direction can be given, so
do not put a letter after the degree sign.
Fill in the blanks below.
1. There are _____ seconds in a minute, _____ minutes in a degree, and _____degrees in a circle.
2. Latitude measures distance _____ and _____ of the _____.
3. Longitude measures distance _____ and _____ of the ______________ which runs through __________.
4. Latitude measures as high as _____ which represents the ________ and longitude measures as high as _____.
5. At the poles, all lines of longitude (meridians) __________.
6. The coordinates of the north pole are _____ and of the south pole are _____.
Look at the points on the map above and identify their location by latitude and longitude to the nearest 15°
(All answers must be multiples of 15°.) Do not forget to state the direction, if necessary.
Leave a blank if no information is needed.
The directions _____ or _____ must always be given with latitude EXCEPT for _____ which is the _____.
The directions _____ or _____ must always be given with longitude EXCEPT for _____ which
is the _____ and _____ on the opposite side of the earth. Latitude can NEVER be over
_____ and longitude can NEVER be over _____ . All points on the earth's surface must be
identified by both coordinates EXCEPT for ____ ___ which is the _____ and
____ ___ which is _____.
Answers: 1. 60°, 60°, 360°; 2. north, south, equator; 3. east, west, prime meridian, Greenwich, England;
4. 90°, poles, 180°; 5. converge; 6. 90°N, 90°S; A 75°N, 90°W; B 60°N, 120°W; C 60°N, 60°E; D 15°N, 45°W; E 0°, 150°W;
F 60°S,120°W; G 30°S, 0°; H 15°S, 75°E; I 45°S, 150°E; J 30°N, 180°.
NOTE: A through J must match EXACTLY to be correct!; north, south, 0°, equator. east, west, 0°, prime
meridian, 180°. 90°, 180°. 90°, N, north pole, 90°, S, south pole.
Get more practice with latitude and longitude.