1. The problem statement, all variables and given/known data Calculate the flux of the vector field through the surface: F = i + 2j through a square of side length 2, lying in the plane x + y + z = 1, oriented away from the origin. 2. Relevant equations 3. The attempt at a solution So, I need to take the integral over the surface of F dotted with dA. I've solved for dA already. I'm trying to think of the limits of integrations, but I can't figure them out. Often these relatively simply things seem to slip my mind.