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  1. ... angle = 131.8 ° 5: Area of sector / π x R^2 = Angle at centre / 360 A / π X 15^2 = 30 / 360...

    3 Answers · Science & Mathematics · 12/04/2013

  2. ...perimeter is p = 2r + s = 2r + r θ = 200 then θ = (200 – 2r)/r The area of the sector is A (r) = ½ r s = ½ r² θ = [r(200 – 2r)]/2...

    2 Answers · Science & Mathematics · 03/03/2008

  3. ...2] [side x side]...here 100 = [ 1/ 2] H² sin 40° cos 40° , find H !! area of circle is π radius² ≡ [ angle measure / 2 ] radius²...holds...

    1 Answers · Science & Mathematics · 15/03/2013

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