degrees
the minimium distance between the two meridians is at the poles because all the meridians comerge at the poles
The lines running between the two poles are called meridians. These meridians are used in geographic coordinate systems to measure longitude and determine the angular distance east or west of the Prime Meridian (0 degrees longitude).
That is usually measured in degrees.
It is because all lines of longitude originate and converge there.
Assuming the Earth's circumference is 40,075.017 km at the equator, and considering there are 360 meridians which results in 360 meridional regions; 40,075.017/360= ~ 111.32 km = 69.171 miles
because the north pole is 90 degrees latitude
The center of Africa is between the Indian and Atlantic meridians.
Meridians of longitude; parallels of latitude. Remember that meridians are all the same length (20,000 km) and that they meet at the poles. Parallels are, well, parallel, and are different lengths, the longest being the Equator.
First of all, a meridian can be drawn at any longitude, there's no standard set of them, and there are actually an infinite number of possible different ones. So in order to get anywhere with this question, you'd have to specify which two of them you're interested in. But even if you named two meridians, there's no single answer to the question, because the distance between any pair of meridians changes. They're farthest apart where they cross the equator, and ALL meridians come together at a single point at the north and south poles. The distance in one degree of longitude is about 69 miles on the equator, and it shrinks smoothly to zero at the poles. The distance between any two meridians is (69 miles) x (degrees of longitude between them) x (cosine of the latitude where you measure it).
Meridians Meridians ;p
The center of Africa is between the Indian and Atlantic meridians.
Because the meridians are not parallel. They're the slices you make when you want to cut an orange into sections, where each slice goes through the same point on top and the same point on the bottom, and the pieces taper, from wide at the skin to nothing at the middle. The parallels are literally parallel. They're the slices you make when you want to cut the orange into "rounds", where the slices are all parallel, and the pieces are all circular disks of different sizes.