| slope |
A measure of change in surface value over distance, expressed in degrees or as a percentage. For example, a rise of 2 meters over a distance of 100 meters describes a 2% slope with an angle of 1.15. Mathematically, slope is referred to as the first derivative of the surface.
Ãâó: thoreau.dnr.state.mn.us/mis/gis/tools/arcview/Trai...
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| slope |
Measured by rise in inches for each 12 inches of horizontal run: A roof with 4-in-12 slope rises 4 inches for every foot of horizontal distance.
Ãâó: www.alpine-roofing.com/Terminology.htm
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