For example, I need to make a panel with a rounded corner, a title and one line conent.
The height of the panel is not as tall as the circle but it's OK if I put an arc!!!
The panel is made of one big rectangle (blue background) that holds the title, other bigger rectangle (gray background) that holds the content, one small square (same color as the page background) and the arc (gray as the panel background).
Note: I can't change the sizes of the rectangles or the arc diameter.
I have other examples but they are more complicated.
I still can't understand why the height of the arc have to be the same as the circle.