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How do you measure the length of a parallel for example the equator is 40 075 km is there any rule or hint by how many km the length of a parallel decreases if I go south or north from the equator?
Wiki User
∙ 11y ago
The length at the Equatoir is calculated by taking a short distance, and measuring the angle of the Sun at the ends of this distance.
Then using this arc length it is extrapolated to a full circle. Hence the circumference at the equatoirs.
Then to meaisre the circumferecne at any latitude and imaginary triangle draw inside the Earth is used , and by calculating Pythagorias and trigonimetry the circumference distance can calculayted for any latitude.
We note that Cos(60 dgerees) = 1/2 , it follows that at latitudes 60N & S , the circumference is half the equatorial distance.
NB The Equator and all the meridians cut the Earth into two equal hemisheres. In travelling along these lines you are travelling the shortest distance across a sphere. 'Great Circle' routes do the same.
NNB I refer you to Eratosthenes (wikipedia), he calculated the Earth's circumference to a high degree of accuracy, during Classical times ( Classical Greece).
lenpollock
Wiki User
∙ 11y agoI expect answers like: it decreases by X when you go for example 10° . Thanks a lot.
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What lines measure the distance north and south of the equator?
Lines of latitude. Longitude is from Pole to Pole.
Why is it that two circles of latitude never touch?
Because they are parallel lines. Parallel lines never touch in Euclidean geometry. They are parallel to each other, running east to west. They measure distances from the equator. The line that is 10° north will obviously never touch the one that is 20° north as they are at the same distance from the equator all of the time for example.
What is the latitude measure of the equator?
0 degrees latitude at the equator.
What happens to the length of parallels of latitude as you move south from the North Pole to the equator?
The circumference of any parallel of latitude would be(Earth's equatorial circumference) times (cosine of the latitude of that parallel)That means that the Equator ... the 'line' of zero latitude ... is roughly 24,900 miles,and they dwindle down to zero length at the poles.
Where does the latitude measure 0?
The Equator
What do Parallel measure?
Latitude,the angular distance from the equator toward either pole.
What are the imaginary lines that measure distance north to south of the equator?
parallel lines, or lines of latitude.
What lines measure the distance north and south of the equator?
Lines of latitude. Longitude is from Pole to Pole.
What is properties of parallel and meridian?
Parallels Parallels are circles that are parallel to the equator. They are measured in degrees north or south of the equator, with 0° latitude being the equator itself. The distance between two adjacent parallels decreases as you move towards the poles. The equator is the longest parallel, while the poles are the shortest. Parallels are used to determine latitude, which is the measure of how far north or south a location is from the equator. Meridians Meridians are semi-circles that run from the North Pole to the South Pole. They are measured in degrees east or west of the Prime Meridian, which is the meridian that passes through Greenwich, England. The distance between two adjacent meridians is the same everywhere on Earth. The Prime Meridian is the longest meridian, while the 180° meridian is the shortest. Meridians are used to determine longitude, which is the measure of how far east or west a location is from the Prime Meridian.
Which line measure distance north or south of the equator are also called parallels?
Latitude is the angle that describes the location of a place north or southof the equator. All lines of constant latitude are parallel.
Do parallel liines lie on the same plane?
They usually do. But latitudes, which measure distances from the equator and which, on earth, are called the parallels of latitude, do not lie in a plane.
Where was korea divided after world war 2?
After the defeat of Japan in 1945, the 38th parallel was chosen to divide the Korean peninsula into two US and Soviet occupied zones. The line dividing North and South Korea is still often referred to as the 38th parallel, but the border is no longer parallel to the equator and rather runs diagonally across the peninsula.
Why is it that two circles of latitude never touch?
Because they are parallel lines. Parallel lines never touch in Euclidean geometry. They are parallel to each other, running east to west. They measure distances from the equator. The line that is 10° north will obviously never touch the one that is 20° north as they are at the same distance from the equator all of the time for example.
Does the equator measure o?
the equator measures O degrees
What is the latitude measure of the equator?
0 degrees latitude at the equator.
What is 55th parallel?
It's the line of latitude that runs (east west) through the middle of Canada, 55 degrees north of the equator. its a vague measure often used to indicate to the military the mid point of something significant i.e the 38th parallel = Korea 17th parallel = Vietnam etc
What happens to the length of parallels of latitude as you move south from the North Pole to the equator?
The circumference of any parallel of latitude would be(Earth's equatorial circumference) times (cosine of the latitude of that parallel)That means that the Equator ... the 'line' of zero latitude ... is roughly 24,900 miles,and they dwindle down to zero length at the poles.
