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anonymous

  • one year ago

Medal award! Find the arc length along a circle of diameter 9.5 meters which subtends an angle of 1.9 radians

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  1. anonymous
    • one year ago
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    diameter=9.5 m radius r=?

  2. anonymous
    • one year ago
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    4.75

  3. anonymous
    • one year ago
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    correct. \[\theta=\frac{ l }{ r },l=r \times \theta \] where l= length of arc r=radius if circle \[\theta=angle~of~arc(in~radians)\]

  4. anonymous
    • one year ago
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    can you solve?

  5. anonymous
    • one year ago
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    so I have 4.75*9.5?

  6. anonymous
    • one year ago
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    4.75*1.9

  7. anonymous
    • one year ago
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    correct.

  8. anonymous
    • one year ago
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    so I would just need to input 1.9pi*4.75? Because I tried that and it mentioned that it was incorrect

  9. anonymous
    • one year ago
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    4.75*1.9=9.025 m

  10. anonymous
    • one year ago
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    thanks so much :)

  11. anonymous
    • one year ago
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    why are you writing pi ? angle is already given in radians.

  12. anonymous
    • one year ago
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    when angle is given in degrees then you need to change it in radians.

  13. anonymous
    • one year ago
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    yep :) I messed up but the 9.025 is correct! Thanks so much

  14. anonymous
    • one year ago
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    yw

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spraguer (Moderator)
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