Sumatra is the second-largest island of the Indonesian archipelago. It has an area of 182,860 square miles (473,606 sq km). It is the westernmost major island of Indonesia, and is separated from the Malayan Peninsula by the Strait of Malacca.
Sumatra is the second-largest island of the Indonesian archipelago. It has an area of 182,860 square miles (473,606 sq km). It is the westernmost major island of Indonesia, and is separated from the Malayan Peninsula by the Strait of Malacca.