they are defined by rivers, ridges, Coastlines or lines not parallel to lines of latitude and longitude. Examples of states like this are: Washington D.C. (almost diamond shape), New Jersey and Hawaii (undefined territorial waters)
Every place has its own unique latitude and longitude, so other than China, no other place can have the same latitude and longitude as itself.
The Colombia/Brazil border
All 50 states in the United States use some form of latitude and longitude lines to determine their borders.
The location at 55°N latitude and 40°E longitude is in Russia. Specifically, it is in the western part of the country, near the border with Finland and the White Sea.
No, no more than border lines between states or naions.
Every place has its own unique latitude and longitude, so other than China, no other place can have the same latitude and longitude as itself.
One can learn about this specific border crossing on many websites online. Wikipedia provides detailed information regarding this border and where the exact location is on the longitude and latitude line.
A geometric border is made by the lines of latitude and longitude, the United States has mostly a goemetric border with Canada.
The Colombia/Brazil border
All 50 states in the United States use some form of latitude and longitude lines to determine their borders.
The location at 55°N latitude and 40°E longitude is in Russia. Specifically, it is in the western part of the country, near the border with Finland and the White Sea.
No, no more than border lines between states or naions.
States with only straight borders could probably be defined just by longitude and latitude. Those states are: Utah, Wyoming, Colorado, and New Mexico - so 4 states. Colorado and Wyoming would be easiest since they are both essentially rectangles projected onto the sphere of the Earth. Utah is a little more complicated since Wyoming bites into one corner of the state. New Mexico would require the most latitude/longitude information since its Southern border is kind of jagged. All the other states have at least one border determined by a coastline or river or mountain range or some other feature that is most definitely NOT straight, thus cannot be accurately captured just by longitude and latitude.
That's very near the border between Siberia and North Korea
The southern-most latitude in Canada is 41°N and the majority of the US/Canada border is at 49°N latitude (also called the 49th parallel) from 95°W to 123°W longitude.
it ran across the border of Mexico
On the Arctic Circle, near the border between Finland and Russia.