In this link there is a screen capture of my situation. I have these two polygons which intersect.

https://nier.com.br/arquivos/temp/trim.gif

What I want to do is to trim those small parts off, so that I can get a sharp corner.

It would be the same thing as trimming two lines in Autocad to make a corner.

Is there any way to do it in-a-fly? Or do I need to do it manually?

Thank you very much

Daniel