Changes

==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:

e.g.:<math>\frac{rise}{run}=\frac{4\ m}{12\ m}=\frac{1}{3};\ so we say the slope=1:3 or 1 in 3</math>

e.g.:<math>\frac{rise}{run}=\frac{4\ m}{12\ m}=\frac{1}{3};\we\ say\ the\ slope\=1:3\ or\ 1\ in\ 3</math>

==Slope percentage==

==Slope percentage==