How to join open path with closed path

[lolas68515649]

Hi,

I am trying to create a 3-D text box but can't seem to find a way to join an open path to a closed path to create a seemless corner. Please let me know if you have any suggestions,

Thank you in Advance,

Lola

[Doug A Roberts]

There is no way of joining those paths as they are, but if you just want the drawing to appear correct, cut the blue path at that point and join it with the red path.

[marliton]

Hi. You can't join a close path with an open path. The Join command and tools need open paths.

[Myra Ferguson]

Because your goal is the seamless corner, check this thread for suggestions: https://community.adobe.com/t5/illustrator/how-to-get-rid-of-quot-cat-ears-quot-in-illustrator/m-p/1...