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
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the minimium distance between the two meridians is at the poles because all the meridians comerge at the poles
No. All of the meridians merge in a single point at the poles.
The ends of all meridians of longitude converge at the north and south poles. Their centers are all on the equator.
It depends on one's latitude, I believe. Distance at the Poles, Zero, at the Equator about 700 miles.
Because any 'Great Circle' is the shortest distance across a sphere. Where the Earth is concerned , all the meridians and the Equator are Great Circles. The Plane of a 'Great Circles ' 'cut' the sphere into two equally sized hemispheres. NB Other than the Equator all the latitudes are NOT great Circles.