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  1. Given a sector with a radius of r and subtended by an angle of θ (in radians), the...: A = (1/2)r^2θ. Since r = 23 and θ = 45° = π/4, the sector has area: A = (1/2)(23)^2(π/4) = 529π/8 cm^2. I hope...

    3 Answers · Science & Mathematics · 05/09/2010

  2. A sector of angle 5π/12 radians is cut from a circle of radius 6 cm. ...

    3 Answers · Science & Mathematics · 17/04/2010

  3. ...of of a circle is pi*r^2. By proportions, the area of a sector is (theta/2*pi)*pi*r^2 = r^2*theta/2 where theta is in radians...

    1 Answers · Science & Mathematics · 16/09/2008

  4. Sector area = 24 pi Total area = 64 pi . . . (pi r^2) Sector = 24/64 of total area = 3/8 3/8 * 360° = 135 degrees

    1 Answers · Science & Mathematics · 14/04/2012

  5. ...would be: A = π * (5)^2 = 25π So the area of the shaded sector would be: A(t) = A(s) + A(u) → A(s) = A(t...

    1 Answers · Science & Mathematics · 09/02/2011

  6. Hi, Sector AOB has a 120 degree angle so is 1/3 of the circle. Its...

    2 Answers · Science & Mathematics · 06/08/2013

  7. Your sector area formula is wrong, it should be theta/360 * pi*r^2. If you set ... in the same ratio to the radius of its base as the central angle of the sector is to the whole circle.

    2 Answers · Science & Mathematics · 28/10/2010

  8. Ok, to find the area of a sector or part of your circle; you first must find the area of the entire thing...this by dividing 30 (the number of degrees of your sector), by 360 (the number of degrees in the circle). By ...

    3 Answers · Science & Mathematics · 13/02/2017

  9. Area of circle = π x 55.5 ² cm ² Area of sector = (44.4 / 360) x π x 55.5 ² cm ² Area of sector = 1193 cm ² (to nearest whole number)

    6 Answers · Science & Mathematics · 02/08/2007

  10. ...it is a circle , perimeter is the circumference. If it is a sector , then it is 2 X radius + length of the arc Radius = 8cm circumference...

    2 Answers · Science & Mathematics · 02/08/2012

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