# Definition of Latitude Longitude and The Grid

These Geography Notes will help you understand the basic definitions and properties Latitude and Longitude.

Contents

## Latitudes Definition

• The lines that run parallel to the equator.
• These lines are called Parallels or Latitudes.
• They are numbered from zero degrees to 90 degrees, the equator is at 0 degrees.
• The North Pole is at 90 degrees North and the South Pole is at 90 degrees South.

### The other important Latitudes are-

1. The Tropic of Cancer
2. The Tropic of Capricorn
3. The Arctic Circle
4. The Antarctic Circle

### Properties of Latitudes

• The Equator is the largest latitude. It is also called the Great Circle.
• Latitudes don’t touch or cut each other.
• All latitudes are complete circles, except the North Pole and the South Pole which are points.
• All latitudes are located at an equal distance from each other.
• There are 181 latitudes.
• Latitudes are marked in degrees (°) and minutes (‘), where 60’ = 1°.

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## Longitudes Definitions

• The semi-circles running from the North Pole to the South Pole are called Longitudes or Meridians.
• The word Meridian means ‘midday’.
• Longitudes are equal in length, unlike the Latitudes.
• They are 360 in numbers.
• The Meridian passing through Greenwich near London is taken as a 0-degree meridian.
• This Meridian is also called the Prime Meridian.
• Meridians to the East of Prime Meridians are called East Meridians and those to the West are called West Meridians.
• There are 180 meridians to the east of the Prime Meridian and 180 meridians to the west of the Prime Meridian.
• India is located to the east of the Prime Meridian.

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### Properties of Longitudes

• All Longitudes are equal in length.
• Longitudes cross the latitude at right angles.
• The distance between any two longitudes decreases as one moves away from the equator towards the Poles.
• Longitudes are marked in degrees and minutes.

## The Grid System

• The longitudes and longitudes intersect each other and form squares called Grids.
• This network of Grids is known as the Grid System.
• It helps us to locate places accurately on the globe and maps.
• The point that crosses each other will be the location of that place.

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