imaginary lines around the earth that pass through the north and south poles

[tonycurtis]

imaginary lines around the earth that pass through the north and south poles

[Graham-W]

Lines of Longitude.

[tonycurtis]

imaginary lines around the earth that pass through the north and south poles

[Slapshot]

Lines of Longitude t'other ones ie equator and the other lines are lines of latitude

[cathfromsaron]

plus latitudes tropics of cancer and capricorn

[Graham-W]

http://www.kidsgeo.co...ds/0015-longitude.php

[jomifl]

In fact they are planes which extend from the earth's axis into space.

[Old_Geezer]

Is there a question that requires an answer ? I seem to have missed it.

As others have mentioned, these great circles are referred to as lines of longitude.

Surely the equator is a line of latitude.

[factor-fiction]

imaginary lines around the earth that pass through the north and south poles-
Lines of longitude
imaginary lines around the earth that pass through the north and south poles
Lines of longitude

imaginary lines around the earth that pass through the north and south poles
Lines of longitude

[Psybbo]

Well said factor30 Well said factor30 Well said factor30

[jomifl]

Sibton, it does bear repeating.... the equator is the only line of latitude that is a great circle

[d9f1c7]

meridians?