Question

Starting on the Prime Meridian how many degrees of longitude east can we go?

90º west

90º east

180º east

360º since the Earth is a sphere

Answer 1

Starting at the Prime Meridian, you can go a maximum of 180 degrees of longitude east and 180 degrees of longitude west. Thus, the correct answer in this context is **180º east**. The concept of going 360 degrees around the Earth would return you to the starting point, but in terms of dividing longitude, the maximum for either direction is 180 degrees.