I need to find:

- a spherical line
- that passes through the points 0,0 and 8,8
- and the distance of the line between those two points must be exactly 12

I imagine the answer will be in the form of:

A circle centered at X,Y with a radius of R.

I'm a math newb and I don't know how to get started on the problem. Can anyone point me in the right direction? Thanks!