What is the western border of the continent that has 3 countries who use the rand rather than their own legal tender?
South African rand The South African rand (sign: R; code: ZAR) is the currency of South Africa. The rand is subdivided into 100 cents (sign: "c"). The ISO 4217 code is ZAR, from Dutch "Zuid-Afrikaanse Rand" (South African rand). The rand is legal tender in the Common Monetary Area between South Africa, Swaziland, Lesotho, and Namibia, although the latter three countries do have their own currencies.
Geography of Paraguay Paraguay is a landlocked country in South America, bordering Brazil, Argentina and Bolivia. The Paraguay River (Spanish: "Río Paraguay") divides the country into strikingly different eastern and western regions. Both the eastern region (officially called Eastern Paraguay, "Paraguay Oriental", and known as the Paraneña region) and the western region (officially Western Paraguay, "Paraguay Occidental", and known as the Chaco) gently slope toward and are drained into the Paraguay River, which separates and unifies the two regions. With the Paraneña region reaching southward and the Chaco extending to the north, Paraguay straddles the Tropic of Capricorn and experiences both subtropical and tropical climates.