Are the meridians equal in length? What do they form and how have they been extended across the surface of the globe?
Answers
Explanation:
The Earth is an Oblate Spheroid. Therefore it is difficult to locate places on it unless a mathematical system is used. There are two reference points on the Earth- the North Pole and South Pole. With the help of these two points it has been possible to draw the Equator, as it lies exactly midway between the poles. In order to locate places accurately, a network of lines are drawn o the globe. The horizontal lines are the lines of latitudes and the vertical ones are the lines of longitudes. These lines intersect each other at right angles and create a network called a grid or graticule. The graticule helps us to locate places on the surface of the Earth accurately.
All meridians are of equal length
Each one is half length of the equator.