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kmeds16

A circle has radius 7 cm. How many degrees is the central angle subtended by an arc of length 5.5 cm?

  • one year ago
  • one year ago

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  1. sauravshakya
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    |dw:1358256330776:dw|HINT:

    • one year ago
  2. sauravshakya
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    where theta is in radian

    • one year ago
  3. sauravshakya
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    DOES IT HELP?

    • one year ago
  4. tanvirms
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    find the theta in radian and convert it to degrees.

    • one year ago
  5. kmeds16
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    Elaborate more please :))))

    • one year ago
  6. tanvirms
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    |dw:1358256816856:dw|

    • one year ago
  7. kmeds16
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    okkaaaay.. haha! sorry if i'm slow. :)

    • one year ago
  8. tanvirms
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    lol nah...its alright....then what u wanna do is convert theta into degree (cuz this equation will let u find theta in 'radians') to do that...u follow this eq. |dw:1358256989692:dw|

    • one year ago
  9. kmeds16
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    ohh lol i thought its pi/180 XD HAHA. thanks! lol

    • one year ago
  10. tanvirms
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    its pi/180 when u wanna convert degree into radian :) here we're converting radian into degrees.

    • one year ago
  11. xxx3m0gurl67xxx
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    theres a formula for this ( angle/360 degrees ) = ( arclength/ circumference ) so substitute: x /360 = 5.5/14pi 14pi bcuz "Circumference = 2pi(radius)" so 2pi(7)= 14pi x= ((360)(5.5))/14pi x= 1980/14pi or 990/7pi or 45.02 degrees ^.^

    • one year ago
  12. kmeds16
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    thanks for the both of you :) haha

    • one year ago
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