arcs problem

 From:  danny (DGOOSEWATER)
Hello, I am having problems joining two arcs to a line. I crate a line then two arcs on one end. When I try to join them all together its not working. I can only get the line to join with one of the arcs. Or the arcs to join to each other. I am trying to make a complex shape that has multiple arcs that intersect at the ends with a line. No matter what I try I cant get them to behave. I have created a simple 2D example do demonstrate the problem. I wouldn't care, but not being able to join is preventing me from networking on more complex 3d shapes. Any advice is appreciated.

Arc #1

Arc #2

The line.

I can join the arcs together.

Or I can join one arc to the line. But never all three together.