Answered
How to join this 2 lines. Not fitted each other

Both have the same stroke size but not fitted each others

Both have the same stroke size but not fitted each others
You might want to align them first.
Use the selection tool and turn on smart guides.
Grab one line by an anchor point and drag it on the anchor point of the other line you want to align it to. The smart guides will tell you when you hit.
Then select both lines and Object > Path > Join.
Already have an account? Login
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.