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  1. ... A = pi * r^2 A = pi * 10^2 A = 100 * pi The circumference of the whole circle is: d = 2r d...pi * 20 The ratio between the area of the circle and the area of the sector is the same as the ratio between...

    2 Answers · Science & Mathematics · 21/06/2010

  2. ... We also know that a circle has 360° We're given the area of the sector as 24 π in² and we're asked to find out the measurement of the central angle...

    3 Answers · Education & Reference · 20/05/2014

  3. Area of the sector ( A ) / Area of the Circle (PI * r^2) = central angle measure / 360...

    1 Answers · Education & Reference · 18/04/2012

  4. First find the angle of the sector , in radians or degrees.... For example a 60 degree sector has fraction... that fraction by pi * r^2. ( Area of the whole circle)

    2 Answers · Science & Mathematics · 18/07/2009

  5. (30/360)*π(4)^2 Find area of 30 out of the 360 degrees and use area formula

    1 Answers · Science & Mathematics · 18/02/2012

  6. ... will also learn how to find the area of a sector , which is a slice... by 3.14 to find the diameter. With a cylindrical object, like a ... a ruler across the top of the can. Keep...

    12 Answers · Education & Reference · 09/11/2009

  7. ...pi*r^2. so the area of any sector is just the equivalent fraction of the area . the full circle is... area fraction is equivalent to 70/360 times the total area . A = theta/360 * pi * r^2 A ...

    1 Answers · Education & Reference · 07/06/2013

  8. pie*radius^2 (if you have the diameter half it to find the radius) this will give the area of the circle (take pie as 3.142) then go: angle of sector (which sould be given) divided by 360 degrees multiply this by the area of the circle

    2 Answers · Science & Mathematics · 04/02/2007

  9. sector area = pir^2*(central angle/360) if angle is in degrees =pir^2*(central angle/2pi) if angle is in radians area = pi 16^2 (240/360) = 256(2/3)pi = 512pi/3

    3 Answers · Science & Mathematics · 11/04/2010

  10. ...two radii of a circle and the arc the two radii subtend. The arc of the circle is equal...or radians to the central angle ...each r, the are of sector is simply area of entire circle ...

    2 Answers · Science & Mathematics · 19/05/2011

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