1. As shown in the figure, there are three intersecting expressways. Now it is necessary to build a freight station in the area formed by the intersection of three highways, so that the distance from the freight station to the three highways is the same. How to determine the location of the freight station? Briefly describe your method.

2 .. The internal angle of an isosceles triangle is twice smaller than that of another triangle.

Find the degrees of the three internal angles of this triangle. (Consider two situations)