Hi All.
I’d appreciate help on 2 questions:

I have 2 arcs connected at bottom, I drew them with “draw arc through 3 points” there’s an angle between them. To my eye they look like a closed loop, so I though a face would be created over that loop BUT the arcs’ lines are ebossed, and the face is not created. I have no idea why or where/how to look for the problem.

I have half circle with thickness1mm. I would like to move the top of one arc, so the thickness of that semi circle would be, for example 10mm on top but the bottom will stay the same (so the semicircle varies in thikness).
I tried rotation tool, using the base of the semicircle face and axis of rotation, but the edge the top face (side of the halfcircle) in no longer parallel to he base i.e. the face is curving toward the ground (which is sort of reasonable, as it rotates around the axis which is base). I also tried the move tool, to move the arc itself, but then the whole face moves and thus the semicircle is 10mm thick both on top and bottom (which is also sort of reasonable as I move the whole arc).
How do I move only the top of the ark in parallel to the base of the arc that needs to stay put?
Thanks a lot!
I.