Find the volume of those points at the end of vectors starting at the origin that are no more than an angle of /6 from

"Find the volume of those points at the end of vectors starting at the origin that are no more than an angle of π/6 from the vector v=(1,1,1) and inside a radius of ρ = 4." I do not know how to set up the integral. The examples given in class where all centered about the Z-axis.