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barrelracer23

  • 3 years ago

Could someone tell me how to do this problem? I will post the photo in the comments.. Find the length of . Leave your answer in terms of .

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  1. barrelracer23
    • 3 years ago
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  2. thomasj
    • 3 years ago
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    lenght of what?

  3. barrelracer23
    • 3 years ago
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    oh sorry, length of arc XPY

  4. thomasj
    • 3 years ago
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    length of arc xy is equal to the measure of the right central angle =90 total arc length for a circle is 360. can you do it from here?

  5. barrelracer23
    • 3 years ago
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    I have to leave it in terms of (pi) im not sure how to do that

  6. thomasj
    • 3 years ago
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    ok. total arc length of circle in terms of pi is 2pi. the 90 degree arc is 1/4 of the total circle arc. so 1/4(2pi)=?

  7. barrelracer23
    • 3 years ago
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    So my answer choices are 540(pi) 9(pi) 18(pi) and 3(pi) would it be 9(pi)?

  8. thomasj
    • 3 years ago
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    none of those works. the answer would be 3pi/2

  9. barrelracer23
    • 3 years ago
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    oh:\ Thank you for helping!

  10. barrelracer23
    • 3 years ago
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    It said that the correct answer was 9(pi)?:\

  11. alreadyalright
    • one month ago
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    Yes! 9 pi

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