[Amateur Hour Help] Making a easy curve

I want to make a curve shown here: http://i.imgur.com/s5qV7im.png

The current way i do it is by extending the current face and rotating it 10 degrees in isometric view.

The problem is that it creates a inwards dip starting at the beginning of the model shown in the picture, there is probably a much easier way of doing this and a easier way of doing it correctly.

Thank you :slight_smile:

Position the 3d cursor at the centre of rotation, set it to be the pivot point (. key), extrude edge and rotate 10 degrees (R 10), repeat