Final answer:
Indonesia is one of the two countries that have six of the world's 10 largest islands by area.
Step-by-step explanation:
One of the two countries that have six of the world's 10 largest islands by area is Indonesia. Indonesia is the world's largest archipelago state, consisting of more than 17,500 islands, including major islands like Java, Borneo, and Sumatra. These islands contribute to Indonesia's large land area and make it one of the countries with the most significant islands.