I've been wondering that I think it is 180 degrees because the smallest is 0 degrees, and the largest, 180 I'm not sure it's like that in math but in social studies I don't really know try this though.
meridians or lines of longitude
A common nickname for lines of longitude is "meridians."
Meridians of Longitude All of the other meridians; the lines of longitude.
Meridians are lines of longitude that are drawn from the North to South poles.
"Lines" of constant longitude are "meridians".
Yes, lines of longitude are also known as meridians. For example: 0° longitude is the the prime meridian.
meridians
lines of longitude
The meridians meet at the poles, which are the points on Earth's surface where the lines of longitude converge. At the North Pole, all lines of longitude meet, and the same is true for the South Pole.
Lines of longitude, or meridians.
Meridians are the same as lines of longitude.
meridians