This article is about the unit of measure. In England, the Square Mile is a traditional name for the City of London.
A square mile (symbol sq. mile or mi²) is an imperial unit which is the area of a square whose side is one mile (or 5,280 feet). A square mile is equal to 27,878,400 square feet, 640 acres, or roughly 2½ square kilometres (2.589988 km², to be more exact). In the Public Land Survey System of the US and the Dominion Land Survey of Canada, the size of a standard section of land is one square mile. Note that the abbreviation sq. mile is more common than mi², as the use of a superscript 2 to indicate a squared unit is more common with SI units.
Extending 336 km (209 mi) N–S and 203 km (126 mi) E–W, Guinea-Bissau is bordered on the N by Senegal, on the E and SE by Guinea, and on the SW and W by the Atlantic Ocean, with a total boundary length of 1,074 km (667 mi).
The coastline of Madagascar is 4,828 km (3,000 mi).
Malawi extends 853 km (530 mi) N–S and 257 km (160 mi) E–W. It is bounded on the N and E by Tanzania, on the E, S, and SW by Mozambique, and on the W by Zambia, with a total boundary length of 2,881 km (1,790 mi).