The line between countries is called a "border." Borders can be defined by natural features, such as rivers and mountains, or by artificial means, such as treaties and agreements. They serve as boundaries for political, legal, and economic purposes, often influencing trade, Immigration, and governance.
Chat with our AI personalities
It is called a border.
The portion of a line that falls between two points is called a line segment.
A line segment
the measure of a straight-line distance between two points is called length.
the distence between two point called line.