android - rounding path corners in SVG -

i working on svg export , android app. in android, there option round corners of paths , want recreate in svg file. there sseems rounded corner options rectangles , not path objects.

i don't want go down road of adding points path recreate file wont same in external editor (i.e. inkscape)

and example here: svg file: downloads server isnt configured correctly. http://www.robmunro.net/misc/tri.svg

here bitmap version of should be:

http://www.robmunro.net/misc/tri.png

will award points or answers.