Conversation so far:
How many countries make up the Africa continent
There are 54 countries located in Africa.
Which African country is the largest
By land area, Algeria is the largest country on the continent. By population, Nigeria is the largest.
Which African city is the largest
Some of Africa's largest cities include Cairo, Khartoum, Accra, Johannesburg, Casablanca, Lagos, Nairobi, and Algiers.
How large is the African population
Africa's average population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4.

Question: how big an area is the continent
Self-contained rewrite: how big an area is africa