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{{floatright|[[File:Theta.jpg]]}}
{{float right|[[File:Theta.jpg|border|500 px]]}}
==Slope gradient==
==Slope gradient==
Slope gradients are expressed as Y:X where Y is a single unit of rise and X is the corresponding run. It can be calculated by dividing the rise by the run:
Slope gradients are expressed as Y:X where Y is a single unit of rise and X is the corresponding run. It can be calculated by dividing the rise by the run: