# Slope

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'''[[Slope]]''' is used to describe the steepness, '''[[incline]]''', gradient, or '''[[grade]]''' of a straight line. A higher slope value indicates a steeper incline. The slope is defined as the ratio of the "rise" divided by the "run" between two points on a line, or in other words, the ratio of the '''[[altitude]]''' change to the '''[[horizontal]]''' distance between any two points on the line. It is also always the same thing as how many rises in one run. | '''[[Slope]]''' is used to describe the steepness, '''[[incline]]''', gradient, or '''[[grade]]''' of a straight line. A higher slope value indicates a steeper incline. The slope is defined as the ratio of the "rise" divided by the "run" between two points on a line, or in other words, the ratio of the '''[[altitude]]''' change to the '''[[horizontal]]''' distance between any two points on the line. It is also always the same thing as how many rises in one run. | ||

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+ | == Slope Steepness == | ||

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+ | There are two ways of measuring slope steepness. The first is a measurement using '''[[degrees]]''', which measures the angle of the slope in degrees from the horizontal. The second is a percentage. | ||

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+ | This is calculated using the formula 100*rise/run. Rise is the vertical change and run is the horizontal distance. A 100% slope is angled at 45 degrees. | ||

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+ | *10% is equivalent to 5.71º | ||

+ | *20% is equivalent to 11.31º | ||

+ | *30% is equivalent to 16.7º | ||

+ | *40% is equivalent to 21.8º | ||

+ | *50% is equivalent to 25.67º | ||

+ | *75% is equivalent to 36.8º | ||

+ | *100% is equivalent to 45º | ||

+ | |||

+ | A beginner slope is typically between 6% and 25%. Intermediate hills range from 25% to 40%, and expert is 40% plus. | ||

== Also See == | == Also See == |

## Revision as of 20:01, 15 June 2011

** Slope** is used to describe the steepness,

**incline**, gradient, or

**grade**of a straight line. A higher slope value indicates a steeper incline. The slope is defined as the ratio of the "rise" divided by the "run" between two points on a line, or in other words, the ratio of the

**altitude**change to the

**horizontal**distance between any two points on the line. It is also always the same thing as how many rises in one run.

## Slope Steepness

There are two ways of measuring slope steepness. The first is a measurement using **degrees**, which measures the angle of the slope in degrees from the horizontal. The second is a percentage.

This is calculated using the formula 100*rise/run. Rise is the vertical change and run is the horizontal distance. A 100% slope is angled at 45 degrees.

- 10% is equivalent to 5.71º
- 20% is equivalent to 11.31º
- 30% is equivalent to 16.7º
- 40% is equivalent to 21.8º
- 50% is equivalent to 25.67º
- 75% is equivalent to 36.8º
- 100% is equivalent to 45º

A beginner slope is typically between 6% and 25%. Intermediate hills range from 25% to 40%, and expert is 40% plus.

## Also See

## Reference:

- See Wikipedia
[1]**Slope**

Return to **Freestyle Equipment Rules**, **General Definitions** or **Freestyle Skiing**