Asia continent covers about 30% of Earth’s total land area and 8.7% of the Earth’s total surface area. There are 49 sovereign states that are members of the United Nations plus Taiwan (ROC) makes 50 total in Asia.
What is the boundary of Asia as it borders Africa? The boundary between Asia and Africa is the Red Sea, the Gulf of Suez, and the Suez Canal. This makes Egypt a transcontinental country, with the Sinai peninsula in Asia and the remainder of the country in Africa.