Select the remaining points of the sloping slab
- Select the third point. The Z Coordinate dialog box opens again.
- Type -100 in the text field. Confirm by clicking OK. The slope of the slab is determined by the three first selected points.
- Select the fourth point.
- Select Confirm.
- Quit by pressing the Esc key.
- Save the project by selecting File > Save.
You can continue working with the same project in the next exercise: Roofs.
