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koli123able

Triangle Solution:- Two hikers start from the same point ; one walks 9 km heading east, the other one 10 km heading 55 degrees north-east. How far apart are they at the end of their walks? . . ANSWER = 5.79 km

  • one year ago
  • one year ago

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  1. koli123able
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    how to do it

    • one year ago
  2. ludwig457
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    what is the rate?

    • one year ago
  3. koli123able
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    sorry i wrote it wrong

    • one year ago
  4. koli123able
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    Two hikers start from the same point ; one walks 9 km heading east, the other one 10 km heading 55 degrees north-east. How far apart are they at the end of their walks?

    • one year ago
  5. ludwig457
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    sec

    • one year ago
  6. Aperogalics
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    |dw:1352708664845:dw|

    • one year ago
  7. Aperogalics
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    |dw:1352708788099:dw|

    • one year ago
  8. Aperogalics
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    @koli123able as theta is 55 degree 2 sides are given 3rd side can be found:)

    • one year ago
  9. ludwig457
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    law of sines @Aperogalics ?

    • one year ago
  10. Aperogalics
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    Yup but it is law of Cosines:) @ludwig457

    • one year ago
  11. ludwig457
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    oic thanks i havent been over that yet hehe

    • one year ago
  12. koli123able
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    i solved it by myself but the answer is coming wrong...it s coming 8.81 km however it is 5.79 km

    • one year ago
  13. Aperogalics
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    let me solve....wait:)

    • one year ago
  14. koli123able
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    ok

    • one year ago
  15. ludwig457
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    good question @koli123able

    • one year ago
  16. Aperogalics
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    sry but my answer comes 5.79:) let me show it

    • one year ago
  17. koli123able
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    ok

    • one year ago
  18. koli123able
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    how??

    • one year ago
  19. Aperogalics
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    c^2=a^2+b^2-2ab cos c c^2=10^2+9^2-2*10*9* cos35 c^2=181-180*0.8191 c^2=33.5526 c=5.792:)

    • one year ago
  20. Aperogalics
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    @koli123able

    • one year ago
  21. koli123able
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    how did 35 degrees come..it was not in the question

    • one year ago
  22. koli123able
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    is there any formula for calculating c

    • one year ago
  23. Aperogalics
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    @koli123able actually the angle 55 is given North-East ,in direction angle is measured only from North and South directions only:)

    • one year ago
  24. Aperogalics
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    so 90-55=35:)

    • one year ago
  25. koli123able
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    okay

    • one year ago
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