How do i get rid of weird Corners in Illustrator

[NITRO24]

Hello i have this Problem in Illustrator that when i conect 3 lines to a Corner that it creates this weird sharp Corner.

Does someone know how to fix this? 

Thank you!

[Doug A Roberts]

You can't connect three lines to a corner. That corner is the join between the two lines forming an acute angle.

[NITRO24]

Thanks for your reply, but how can fit the 3rd line in there?

I will post another picture, so you can maybe see what I'm trying to do and help me to solve the problem.

Thank you I really appreciate the help!

[John Mensinger · Accepted solution]

Doug's right; technically, the 3 segments aren't joined, but in any case, you can clean up the corner.

With the strokes selected, click either the Round Join or Bevel Join button in the Stroke panel.

[NITRO24]

Thank you thats a good solution, it would have taken ages to figure it out myself.

Thanks a lot!