Senegal is about 7 times bigger than Armenia.

Armenia is approximately 29,743 sq km, while Senegal is approximately 196,722 sq km, making Senegal 561% larger than Armenia. Meanwhile, the population of Armenia is ~3.0 million people (14.9 million more people live in Senegal).
Tip: This to-scale comparison of Armenia vs. Senegal uses the Mercator projection, which distorts the size of regions near the poles.