Symple poncho

I have lost instructions on how to join the simple poncho and got stuck shape L and V I can’t get it help please

Hi and welcome to Knitting Help. I don’t understand what you need help with. Can you explain more, please? Do you know the name of the pattern? Maybe posting a photo would help.

Welcome to Knitting Help!

What pattern are you using? Can you give us a link to it or the pattern name?

Sometimes it’s as straightforward as seaming the short end of one rectangle to the long end of a second but it depends on your pattern instructions.