Results 1 to 2 of 2

Math Help - cirlces and detrmineing the length

  1. #1
    Junior Member allsmiles's Avatar
    Joined
    May 2010
    From
    Altlanta GA
    Posts
    53

    cirlces and detrmineing the length

    Ok, can someone help me out here? kinda stuck

    Determine the length of arc JL.
    A)
    59
    12
    π
    B)
    5
    6
    π
    C)
    13
    12
    π
    D)
    13
    6
    π
    Follow Math Help Forum on Facebook and Google+

  2. #2
    -1
    e^(i*pi)'s Avatar
    Joined
    Feb 2009
    From
    West Midlands, England
    Posts
    3,053
    Thanks
    1
    Quote Originally Posted by allsmiles View Post
    Ok, can someone help me out here? kinda stuck

    Determine the length of arc JL.
    A)
    59
    12
    π
    B)
    5
    6
    π
    C)
    13
    12
    π
    D)
    13
    6
    π
    For degrees the arc length x can be found by \frac{x}{2\pi r} = \frac{\theta}{360}

    Where x is arc length, r is the radius and \theta the angle subtended


    Incidentally it's much easier in radians because x = r \theta
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. [SOLVED] Arc Length and Chord Length
    Posted in the Trigonometry Forum
    Replies: 7
    Last Post: December 22nd 2010, 01:24 AM
  2. quarter cirlces
    Posted in the Geometry Forum
    Replies: 12
    Last Post: June 24th 2010, 12:30 PM
  3. Length needed from a known length and angle
    Posted in the Geometry Forum
    Replies: 4
    Last Post: July 21st 2009, 06:17 AM
  4. arc length and parameterized curve length
    Posted in the Calculus Forum
    Replies: 1
    Last Post: December 5th 2008, 02:33 AM
  5. Line tangent to 2 equal cirlces
    Posted in the Pre-Calculus Forum
    Replies: 5
    Last Post: August 24th 2008, 06:17 AM

Search Tags


/mathhelpforum @mathhelpforum