If I make a circle, and want to delete one quarter of it …
I select the segment I want to delete
and press delete
It goes away, but does not break the shape
(shape remains closed)
If I pres Cut (command-X)
the same thing happens
Is it not possible to cut out a segment of a shape?
I just want to make a three-quarter circle
Likewise, if I may a rectangle
and select two adjacent points
press delete or command-X
it deletes those two points, the segment between them
and the segments not between them
leaving me with two points with a single segment between them
Am I missing something?