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How many lines are there of longitudes?

Updated: 8/20/2019
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Wiki User

12y ago

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That's like asking "How many marks are there on a ruler ?"

There are 360 degrees of longitude around the Earth. Some maps and globes

have a line every 10 degrees, some have a line every 15 degrees, some have

a line every 30 degrees, and some don't have any lines printed on them at all.

The mapping software that I use will print 1,800 lines in every degree, if I feel

that I need them for some reason. And no matter how many lines there are on

your map, there are always longitudes between the lines, just like there are

lengths between the marks on the ruler.

There is no official, standard set of 'lines' that everybody has to use. You can have

as few or as many lines on your map as you feel comfortable with.

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12y ago
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Wiki User

12y ago

Longitude is measured from zero 180° east, and from zero to 180° west, for a total

of 360° . You're free to draw as few or as many lines in those ranges as you like to

have on your maps.

Some commercially-printed maps and globes print a line every 30°, some a line

every 20°, or 15°, or 10°, and some don't print any lines at all. The mapping

software that I use will print a line for me every 2" if I want it, which adds up

to 648,000 lines around the Earth if I want them all printed.

There is no standard set of "lines" that everybody must use. The questrion is

exactly the same as asking: "How many lines of length are there on a ruler ?"

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