Spaces & areas

An area is a part of any surface. Areas are usually separated from everything around them by some kind of boundary, such as a fence or a line drawn around them on a piece of paper.
Area also describes the total size of that area. Different shapes have different formula for calculating how big they are.

Countryside means the land outside towns and cities. The countryside usually has farms, fields, forests, hills, rivers, and small villages. People usually mean farming land when they talk about the countryside. A word for land without houses or farms is wilderness.