Kenya is 3 times larger than Senegal.
Area: 580,367 km2 World Factbook
Population: 45,010,056 (July 2014) World Factbook
Kenya, officially the Republic of Kenya, is a country in the African Great Lakes region of East Africa. Its capital and largest city is Nairobi. Wikipedia
Area: 196,722 km2 World Factbook
Population: 13,635,927 (July 2014) World Factbook
Senegal, officially the Republic of Senegal, is a country in West Africa. It is the westernmost country in the mainland of the Old World or Eurafrasia and owes its name to the Sénégal River that borders it to the east and north. Wikipedia