Well, If you know the radius of each arc, then multiply x pi for the circumference. Then figure out how many times you divide it up into 360 will give you the angle.
You can then measure the distance between the arcs and use the numbers from above to make your pattern.
If you have a good big TS sled, you don't even need to know the actual angle, if you put a fresh piece of 1/4" mdf on and make a cut through with a fine tooth blade. You can then lay the pattern down with one edge along the kerf, then put a stop or fence over on the other edge.
I cut whole stacks up to about 1" on my sleds like this for things like pie cut round tops. You need a good very sharp low hook angle ATB blade, zero clearance support under the veneers, and a weighted 3/4" mdf platen on top to hold them flat.
That will get you the wedges, however, I have no idea how flat or steep you are visualizing. If you brought both of the straight edges of your drawing around by bending, it would be a pretty steep cone. But if you just wanted to have it pretty flat, you'll need to figure the arcs by how far down the axis from the apex those two arcs are for making your bending form.
I know this sounds a bit nebulous. You kinda need to think of the bending form as stations like is used when lofting a boat plan. I hope that helps.