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anonymous

  • 5 years ago

The circle above has a circumference of 22π inches. if m<ABC=30 degree what is the measure of the arc length of AB When you click on the question you can see the picture. Please help me :)

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  1. anonymous
    • 5 years ago
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  2. anonymous
    • 5 years ago
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    Arc length=r*θ , (r is radius, θ is the central angle).

  3. anonymous
    • 5 years ago
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    You already have θ, Can you find r?

  4. anonymous
    • 5 years ago
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    Oh and they chocies are A.)22/3π inches B.)11/6π inches C.)11/3π inches D.) 11/2π inches

  5. anonymous
    • 5 years ago
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    Ok.. I am asking if you can find the radius of the given circle ^^

  6. anonymous
    • 5 years ago
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    ohh sorry no idk

  7. anonymous
    • 5 years ago
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    Well, I will help you find it. The circumference is 2r*π, What is r then?

  8. anonymous
    • 5 years ago
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    okay 6.28

  9. anonymous
    • 5 years ago
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    Not quite. 2r*π=22π. That means r=11.

  10. anonymous
    • 5 years ago
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    so i got D?

  11. anonymous
    • 5 years ago
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    you there?

  12. anonymous
    • 5 years ago
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    Well. You know you have to convert the angle to radian: The arc length=11*(30/180)π=(11/6)π

  13. anonymous
    • 5 years ago
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    You're welcome!!

  14. anonymous
    • 5 years ago
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    so its B

  15. anonymous
    • 5 years ago
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    LOL Yeah.

  16. anonymous
    • 5 years ago
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    Thanks :)

  17. anonymous
    • 5 years ago
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    np.

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