# What are the lines called that run around the Earth in a north south direction?

## What are the lines called that run around the Earth in a north south direction?

Longitude is measured by imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles. These lines are known as meridians.

## What are the two sets of imaginary lines called?

These lines are called parallels of latitude and meridians of longitude. Two of these imaginary reference lines, the equator and the prime meridian, are called primary reference lines because they are where we start the numbering system.

## What are the two imaginary lines?

International Date Line, Latitude, including the Equator, Longitude, the prime meridian, the Tropic of Capricorn and the Tropic of Cancer. Any axis about which an object spins is an imaginary line.

Equator

## What is the need for imaginary lines?

The imaginary line around the globe are very important because are drawn for navigation and geographic information. These lines are helpful in determining location of an object around the globe. Distances of the objects are also found due to these lines.

## What do you call imaginary lines?

Imaginary lines, also called meridians, running vertically around the globe. Unlike latitude lines, longitude lines are not parallel. Meridians meet at the poles and are widest apart at the equator. Zero degrees longitude (0) is called the prime meridian.

parallels

## What term is used for the imaginary is west horizontal lines on the earth?

Meridians – Meridians are also known as Longitudes. They are imaginary lines running around the North-South Direction.

## What is the Prime Meridian definition?

The prime meridian is the line of 0° longitude, the starting point for measuring distance both east and west around the Earth.

## Where in the world does the day start?

Greenwich, England

## What is another name for 180 degrees longitude?

The 180th meridian or antimeridian is the meridian 180° both east and west of the Prime Meridian, with which it forms a great circle dividing the earth into the Western and Eastern Hemispheres. It is common to both east longitude and west longitude.