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anonymous

  • one year ago

If the arc length shown is 15 feet, find theta to the nearest hundredth of a degree: http://tinyurl.com/ocy3hpc

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  1. jim_thompson5910
    • one year ago
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    Formula \[\Large s = \frac{\theta}{360}*2*\pi*r\] s = arc length = 15 theta = angle pi = 3.14 approximately r = radius (which looks to be about 6 feet? It's not 100% clear)

  2. anonymous
    • one year ago
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    Yes it is 6 feet. \[15=\theta/360 \times2\times \pi \times 6\] is this correct?

  3. jim_thompson5910
    • one year ago
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    so far so good

  4. jim_thompson5910
    • one year ago
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    now isolate theta

  5. anonymous
    • one year ago
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    \[\theta =450/\pi\] Is this correct?

  6. jim_thompson5910
    • one year ago
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    I got that too. Now approximate that and round to the nearest hundredth.

  7. anonymous
    • one year ago
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    I got 143.23

  8. jim_thompson5910
    • one year ago
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    I'm getting 450/pi = 143.2394487 so that would round to 143.24

  9. anonymous
    • one year ago
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    Okay thank you

  10. jim_thompson5910
    • one year ago
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    no problem

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