Latitude is the measure up of street north or southern of the Equator. That is measured through 180 imaginary lines that form circles about the earth east-west, parallel to the Equator. These lines are well-known as parallels. A circle of latitude is an imagine ring linking every points share a parallel.The Equator is the heat of 0 degrees latitude. Each parallel procedures one degree north or south of the Equator, v 90 levels north of the Equator and 90 degrees south that the Equator. The latitude of the phibìc Pole is 90 degrees N, and also the latitude the the southern Pole is 90 degrees S. Choose the poles, part circles the latitude space named. The Tropic that Cancer, because that instance, is 23 levels 26 minutes 21 secs N—23° 26" 21"" N. The twin, the Tropic that Capricorn, is 23° 26" 21"" S. The tropics are essential geographic locations that mark the northernmost and southernmost latitudes where the sun have the right to be seen directly overhead throughout a solstice.One degree of latitude, called an arcdegree, covers about 111 kilometers (69 miles). Because of the Earth"s curvature, the farther the circles space from the Equator, the smaller sized they are. At the North and also South Poles, arcdegrees are simply points.Degrees of latitude are divided into 60 minutes. To be even an ext precise, those minute are separated into 60 seconds. One minute the latitude covers around 1.8 kilometers (1.1 miles) and one second of latitude covers about 32 meter (105 feet).For example, the latitude because that Cairo, Egypt, in degrees and also minutes would certainly be written as 29° 52" N, due to the fact that the city is 29 degrees, 52 minutes north of the Equator. The latitude for Cape Town, south Africa, would certainly be 33° 56" S, due to the fact that the city is 33 degrees, 56 minutes southern of the Equator. Using seconds of latitude, an international positioning mechanism (GPS) gadgets can decide schools, houses, even rooms in either of these towns.Similar to latitude, the matching measurement the distance around the earth is dubbed longitude. The imaginary lines of latitude and longitude crossing each other, developing a grid the covers the Earth. The point out of latitude and longitude are called coordinates, and also can be provided together to find any point on Earth.

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54-40 or Fight!An area that the circle of latitude in ~ 54 40" N was a hotly challenged piece of actual estate in the 19th century. The U.S. And also the united kingdom (Canada) both asserted insurance claims to the Pacific Northwest, in what became known together the Oregon boundary Dispute. "54-40 or fight!" was a cry of American settlers.

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The boundary in between the U.S. And also Canada to be eventually developed at the 49th parallel.