How many triangle are in a pentagon?

Oh, dude, there are technically 35 triangles in a pentagon. You've got the main five triangles from the pentagon itself, then you can make 10 more by connecting each vertex to the other non-adjacent vertices, and finally, you can make 20 more by connecting each vertex to the midpoint of the opposite side. So, yeah, 35 triangles in total, if you're into that kind of thing.