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How do i find the area

  1. Jul 31, 2005 #1
    how do i find the area of a shape like a sector,but having different lenghts
     
  2. jcsd
  3. Jul 31, 2005 #2
    A sector of a circle? By different lengths, do you mean the radius varies? If that is what you mean, you could use polar coordinates in which the area would be:

    [tex]\frac{1}{2}\int_{\alpha}^{\beta}f(\theta)^{2}d\theta[/tex]

    I don't know if this is exactly what you are asking, so maybe someone else can clear it up.
     
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