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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.
There are 39 states that are partially defined by longitude and latitude.
Some borders are made by natural features, such as rivers. Other times, there might be a straight line determined by geographical latitude or longitude.
There are only a few US states in which EVERY border is defined by a line of latitude or longitude; normally the state borders represent some physical feature such as a river or mountain range. Look for perfectly straight lines; those are defined by latitude or longitude. Curvy borders are normally rivers. Some of the straight borders are famous; for example, in the 1760's, two famous surveyors named Mason and Dixon surveyed the border between Pennsylvania and Maryland. Most people have heard of the "Mason-Dixon Line", but don't know where it is. The term "Dixie" as meaning the southeastern United States may have come, at least in part, by the north/south division of the American colonies by the Mason-Dixon line. There's probably not a single state, with the possible exception of Hawaii, that doesn't use latitude and longitude to define some portion of its border, since any formal land survey will return its results in terms of the geographic coordinates of the significant points along the boundary of the property.
There are only a few US states in which EVERY border is defined by a line of latitude or longitude; normally the state borders represent some physical feature such as a river or mountain range. Look for perfectly straight lines; those are defined by latitude or longitude. Curvy borders are normally rivers. Some of the straight borders are famous; for example, in the 1760's, two famous surveyors named Mason and Dixon surveyed the border between Pennsylvania and Maryland. Most people have heard of the "Mason-Dixon Line", but don't know where it is. The term "Dixie" as meaning the southeastern United States may have come, at least in part, by the north/south division of the American colonies by the Mason-Dixon line. There's probably not a single state, with the possible exception of Hawaii, that doesn't use latitude and longitude to define some portion of its border, since any formal land survey will return its results in terms of the geographic coordinates of the significant points along the boundary of the property.
Every point on Earth has longitude and latitude.
Colorado, Wyoming, and Utah. Their borders have both latitude and longitude border lines. New Mexico does not qualify. There's a small section near El Paso that has wavy borders.
Borders are determined either by natural formations such a s river or lake or by surveying which frequently is linked with longitude and latitude. The latter would be straight lines either N & S or E & W.
The US states generally are not square. One or more state borders may be straight along a line of longitude or latitude, or they may follow the course of a river or mountain ridge.
Once you name a longitude and latitude, you've nailed down a single point on the Earth's surface, and no other point anywhere on Earth can have the same longitude and latitude.
Every point on the surface of the earth has latitude and longitude. If the latitude and longitude of a point are given and they're sufficiently accurate, the point can be found within less than an inch, anywhere on earth.
The latitude and longitude for the capital of the United States of America is: N38*53', W77*02'