The center point of the wheel is projected with the sketch, this is why you see Yellow over the black lines of the wheel circles. I have deleted a couple of the projected lines just to clean up the sketch and verify they are projecting their center point.
I then did the section lines nowhere near the center point, then dragged the end point to the center point. Then moving the lower line until it became constrained Vertically. I then added the 120 deg dim to position the upper angled line to be centered on the wheel spoke.
You may want to use the "Projected" Option when you do this to get the view with the upper portion at the angle.

Center Point http://autode.sk/1WeSLnp
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
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