with variant redii values
To draw a rectangle with vaiant radii we need to use s combination od the SVG path commands:
MoveTo: M , m.
LineTo: L , l , H , h , V , v.
ClosePath: Z , z.
Elliptical Arc Curve: A , a.
Drawing arcs using the element is done using the A and a commands. Like with lines, the uppercase command (A) uses absolute coordinates for its endpoint, where the lowercase command (a) uses relative coordinates (relative to the start point). Here is an example: