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November 01, 2025, 10:33:19 am
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Author Topic: Contour maps help  (Read 691 times)  Share 

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wholeT

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Contour maps help
« on: October 05, 2013, 01:13:40 pm »
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Hi all, i need help with this question.
Given that the horizontal distance between F and G is 2km, the average gradient from G to F is

Much appreciated

The answer states that it is -0.15, however i got 0.15. Not sure whether i'm right.
« Last Edit: October 05, 2013, 01:17:20 pm by wholeT »
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Stevensmay

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Re: Contour maps help
« Reply #1 on: October 05, 2013, 01:30:00 pm »
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From G to F means that we are starting at point G and heading towards point F.
As G is higher than F, we should expect to find a negative gradient as we are heading downwards, thus -0.15.
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Damoz.G

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Re: Contour maps help
« Reply #2 on: October 05, 2013, 11:31:50 pm »
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The Gradient is negative because Point G is 400m high and Point F is only 100m high. So from G TO F, it is doing downward.

If it asked you from F to G, then it would've been 0.15, because it would be upwards. :)

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