Depending on the tile that is to be installed and where it will be installed it is sometimes approp.
Subway tile around inside corner.
My husband has been working on our subway tile backsplash and i just walked in to find the corner like the third image ack.
Work with great care as you might move the plastic trim from position.
How to install a simple subway tile kitchen backsplash.
You would typically center the back wall so the cuts are even on both sides.
Next spread tile adhesive on the back of the tiles and install them into position.
Press the tile against the wall with the cut side facing the corner and the other edge next to the last full tile in the course.
Apply mortar to the back of the tile with the notched trowel.
This time make the cuts at the corner so that the cut side of the tiles are about 1 8 inch from the face of the tiles on the other wall.
Space the two tiles consistent with the rest of the tiles generally 1 8 inch which will leave a 1 4 inch space at the corner.
Repeat the process on the other side of the corner.
For instance if a tile is 3x6 and at the corner you have room for a 2 piece then the piece on the other side of the corner should be 4 to make a whole 6 tile so it looks like the whole tile is folded into the corner and the brick pattern is not interrupted.
If you have to install strips of tile along the inside corner you should measure the distance from the last tile in the row to the corner making sure you take into account the expansion gap.
A 3 sided shower for example.
Generally speaking when you come to the end of a wall and you want the subway tile installation to look like it wraps onto the next wall.
Then you want the inside corner to look like the tile continues onto both side walls.