Why do you have 360 degrees longitudes and only 181 degrees latitudes?

Answer 1

There are several ways to come at this answer, most of them way too technical

and arcane to bother with.

The easiest answer to state and understand may be simply the fact that

each parallel of latitude goes all the way around the Earth, but each meridian

of longitude only goes half-way around the Earth, so you need more of them

to cover the whole Earth. Does that do anything for you ?

And by the way . . . there are only 180 degrees of latitude.

Answer 2

The 360 degrees of longitude represent the full circle around the Earth, while the 181 degrees of latitude cover from the North Pole to the South Pole, leaving out the equator which is at 0 degrees latitude. The latitude range is from -90 degrees to +90 degrees, with 180 degrees in total.