Slope
Slope creates a 'slope' Grid from a TIN at angles between 0 and 90 degrees.
Select Analysis > Grids > Slope and Aspect > Slope.
This opens the grid options:
- Enter the desired cell size (this is in metres)
- Check the tickbox to save this particular grid as a Named Object:
- Check the tickbox to include this as a graphical item in the dataset.