Question

defination geographic meridian​

Answer 1

Answer:

A meridian is the half of an imaginary great circle on the Earth's surface, a coordinate line terminated by the North Pole and the South Pole, connecting points of equal longitude, as measured in angular degrees east or west of the Prime Meridian.

Explanation:

Meridian, imaginary north–south line on the Earth's surface that connects both geographic poles; it is used to indicate longitude. The 40th meridian, for example, has a longitude of 40° E or 40° W.

Answer 2

Answer:

a circle of constant longitude passing through a given place on the earth's surface and the terrestrial poles.