Why is Algeria considered the largest country in Africa?

Algeria is considered the largest country in Africa because it possesses the greatest total land area on the continent, measuring approximately 919,595 square miles (2,381,741 square km).12

This vast territory is largely defined by its geography; the southern region of the country is almost entirely desert, forming a significant portion of the Sahara that stretches across North Africa. While other nations like the Democratic Republic of the Congo have large landmasses, they remain smaller than Algeria in total area.312