Question

What are the Great Circle Router?
State their importance​

Answer 1

The shortest route between two points on a globe is along part of a great circle, which is a large circle going all the way round the globe with the centre of the Earth at the centre of the circle.

.....The most famous use of great circles in geography is for navigation because they represent the shortest distance between two points on a sphere. Due to the earth's rotation, sailors and pilots using great circle routes must constantly adjust their route as the heading changes over long distances.