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koli123able

  • 3 years ago

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

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  1. koli123able
    • 3 years ago
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    how to do it

  2. ludwig457
    • 3 years ago
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    what is the rate?

  3. koli123able
    • 3 years ago
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    sorry i wrote it wrong

  4. koli123able
    • 3 years ago
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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?

  5. ludwig457
    • 3 years ago
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    sec

  6. Aperogalics
    • 3 years ago
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    |dw:1352708664845:dw|

  7. Aperogalics
    • 3 years ago
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    |dw:1352708788099:dw|

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

  9. ludwig457
    • 3 years ago
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    law of sines @Aperogalics ?

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

  11. ludwig457
    • 3 years ago
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    oic thanks i havent been over that yet hehe

  12. koli123able
    • 3 years ago
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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

  13. Aperogalics
    • 3 years ago
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    let me solve....wait:)

  14. koli123able
    • 3 years ago
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    ok

  15. ludwig457
    • 3 years ago
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    good question @koli123able

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

  17. koli123able
    • 3 years ago
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    ok

  18. koli123able
    • 3 years ago
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    how??

  19. Aperogalics
    • 3 years ago
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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:)

  20. Aperogalics
    • 3 years ago
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    @koli123able

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

  22. koli123able
    • 3 years ago
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    is there any formula for calculating c

  23. Aperogalics
    • 3 years ago
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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:)

  24. Aperogalics
    • 3 years ago
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    so 90-55=35:)

  25. koli123able
    • 3 years ago
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    okay

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