Make Tangent in Synchronous modeling

You can make connected surfaces as tangent surfaces on the model in the NX. To  make this one of the surfaces moves to new condition. 

For making surfaces tangent:

1. Start the “Make Tangent” command.
2. Select face to make tangent. (Motion Face highlighted in the command window.)
3. Select the  “Stationary Face. (Stationary Face highlighted in the command window.)
4. The model will update itself.
5. Click “Ok” to finish.

Note: The command will move the surface to the nearest adoptable tangent side of the “Stationary Face”. If it is closer to the wrong side of the stationary face, You can use “Move Face” or “Offset Region” commands to move face to the right side of the “Stationary Face”.