how is your maths?

Discussion in 'Random Chat' started by hobbit, May 24, 2014.

  1. hobbit

    hobbit Well-Known Member

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    Did a job today a replacement, (stripes)
    What happened is that the original fitter fitted the carpet square to the wall in the hall and although the stripes lined up with the stairs, as you looked down the stairs the stripe kicked to the left, not a lot but the customer wasn't happy. Original fitter basically give her b.s about angles and wall being of ( in other words Foff) and he's not a people person anyway.
    Anyway job sorted punter thinks I'm the bee's knee's..... On the offending wall the pattern runs off 3 tufts over a distance of exactly 3 meters (handy that) so working on the basis that 3tufts is 1 cm what is the angle in degrees that the wall runs off?

    Go on exercise you brain it'll take you back to you school days... No prize just the self satisfaction of working it out
     
  2. sidney

    sidney Well-Known Member

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    Maths, the subject that brought me out in a cold sweat as a scoolboy.
    So having taken all the angles and numbers into consideration,my answer would be ihaventgota****inclue
     
  3. Trimmer

    Trimmer Well-Known Member

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    It's all about sine, cosine and tangent. It's been donkeys years since I've had to calculate something like that.
    At 5 am on Sunday morning I'm not to bothered
     
  4. merit

    merit Well-Known Member

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    I only do counting on my fingers maths
     
  5. Trimmer

    Trimmer Well-Known Member

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    Angle is 0.57 degrees
     
  6. hobbit

    hobbit Well-Known Member

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    I'll give you all a start
    πd÷4=?
     
  7. TonyA

    TonyA Well-Known Member

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    .2 degrees
     
  8. TonyA

    TonyA Well-Known Member

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    What is n & what is d?
     
  9. hobbit

    hobbit Well-Known Member

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    Its not n its π or pi d is dimater.
     
    Last edited: May 25, 2014
  10. TonyA

    TonyA Well-Known Member

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    you have confused me now ? i thought diameters were for circles. I've been thinking triangles!
     
  11. Trimmer

    Trimmer Well-Known Member

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    Work it out as a right angle triangle. The adjacent is 300 (3m) and the opposite is 3. Then use inverse tan to work out the angle
     
  12. hobbit

    hobbit Well-Known Member

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    Angles, degrees of arc.
     
  13. hobbit

    hobbit Well-Known Member

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    Whats the 3 for?.... The 3 MTS is fine but the wall runs 1 cm of true.
     
  14. Trimmer

    Trimmer Well-Known Member

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    Convert it to the same denominations (3cm and 300cm).

    Oops, thought it was cm out.

    Note to self. READ THINGS PROPERLY
     
  15. Trimmer

    Trimmer Well-Known Member

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    Revised answer as I was wrong first.

    0.19 degrees out
     
  16. hobbit

    hobbit Well-Known Member

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    Thought that when I saw your first answer....
    TonyA was so close that I have count that as correct as well..
    I calculated. 0.191 degrees or can be expressed as 11 minutes and 24 seconds..
    I suspect we used different methodology but came up with the same answer.

    The point in the question was that the customer was a maths teacher as asked how far the wall was out and was gobb smacked I even knew how to work it out..proving just because you work with your hands, your not thick
     
  17. TonyA

    TonyA Well-Known Member

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    is that to 2 decimal places
     
  18. Trimmer

    Trimmer Well-Known Member

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    Yep, rounded to 2 decimal places
     

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