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anonymous

  • one year ago

(a)Two wires were secured to the top of a pole. What is the length of the pole? Show all of your work. Round to the nearest tenth of a foot. (b)How long was the wire? Show all of your work. Round to the nearest tenth of a foot.

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @welshfella

  3. muscrat123
    • one year ago
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    can i help?

  4. muscrat123
    • one year ago
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    i think that maybe i can

  5. anonymous
    • one year ago
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    Sure! :)

  6. muscrat123
    • one year ago
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    i think i might be able to solve this and explain, but im not sure and i dont want to give u the wrong answer. would u like me to tag some one else who knows for sure? @pinkbubbles

  7. muscrat123
    • one year ago
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    or @welshfella can help too

  8. welshfella
    • one year ago
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    to find length of the pole x use the Pythagoras theorem 29^2 = x^2 + 21^2

  9. muscrat123
    • one year ago
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    i thought that but wasnt sure @welshfella

  10. welshfella
    • one year ago
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    yes that's the way x^2 = 29^2 - 21^2 x = sqrt (29^2 - 21^2)

  11. welshfella
    • one year ago
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    having found the value of x you use pythagoras again on the other triangle

  12. anonymous
    • one year ago
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    20 ft for x?

  13. anonymous
    • one year ago
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    y = √(20^2 + 30^2) = 10√13 ≈ 36.1 ft

  14. anonymous
    • one year ago
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    Thank You! @welshfella :)

  15. welshfella
    • one year ago
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    yw

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