Length of Two Guy Wires

Discussion in 'Geometry and Trigonometry' started by nycmathguy, Jan 17, 2022.

  1. nycmathguy

    nycmathguy

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    Section 6.2

    Can you do 49 for me?

    Screenshot_20220116-120535_Samsung Notes.jpg
     
    nycmathguy, Jan 17, 2022
    #1
  2. nycmathguy

    MathLover1

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    let L represent left wire and R right wire

    upload_2022-1-16_20-55-4.jpeg


    upload_2022-1-16_20-52-45.jpeg
     

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    MathLover1, Jan 17, 2022
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  3. nycmathguy

    nycmathguy

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    Sorry but I can't read your reply.

    Do what I do:

    1. Solve on paper.
    2. Take a picture with your phone.
    3. Click on "Upload a File"
    4. Post your thread.

    You can also post using math notation from Wolfram like you sometimes do. Now, the PM about the lease.
     
    nycmathguy, Jan 17, 2022
    #3
  4. nycmathguy

    MathLover1

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    upload_2022-1-17_16-19-45.jpeg

    θ= 6° -> angle with the horizontal
    φ=90+θ=90+6=96°-> angle between the horizontal and left wire
    φ=90-θ=90-6=84°-> angle between the horizontal and right wire

    left wire:

    L^2=100^2+75^2-2*100*75*cos(96)
    L^2=17192.926949014804
    L=sqrt(17192.926949014804)
    L=131.12ft

    right wire:

    R^2=100^2+75^2-2*100*75*cos(84)
    R^2=14057.073050985198
    R=sqrt(14057.073050985198)
    R=118.56ft
     
    MathLover1, Jan 17, 2022
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  5. nycmathguy

    nycmathguy

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    Much better. Thank you so much. You're the best.
     
    nycmathguy, Jan 17, 2022
    #5
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