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  1. it is increased by a factor of 4 a sector is a fraction f of a circle radius r. Area of the circle is pi * r * r Area of the sector is f x pi...

    14 Answers · Science & Mathematics · 16/08/2006

  2. The problem states: "The area of a sector is 5pie cm." I will assume it should state: "The area of ...

    2 Answers · Science & Mathematics · 20/11/2013

  3. the area of a sector is given by the formula 1/2r*r*angle. where r is the radius which is 5cm in this case and angle is 85deg(85*pi/180radians) therefore 1/2 * 5 * 5 * 85 * pi / 180 = 18.544cm^2

    2 Answers · Science & Mathematics · 27/01/2010

  4. it is increased by a factor of 4 a sector is a fraction f of a circle radius r. Area of the circle is pi * r * r Area of the sector is f x pi...

    4 Answers · Science & Mathematics · 27/02/2017

  5. 1)360/20 = 18 ; 2) 18/360 = 1/20 3) Area of Circle is Pi X r^2. So r = 10 and Pi = 3.142. r^2 = 100 so area of full circle is 314.2 Each segment is 314.2/20 = 157.1

    2 Answers · Science & Mathematics · 27/02/2017

  6. A = pi * 150^2 * (175/360) Watch out for rounding on pi and the fraction: A = 3.1416 * 22500 * 0.4861... = 34,360.4646... which rounds down to 34,360 A = (pi * 22500 * 175) / 360 = 34,361.16964 which rounds down to 34,361

    3 Answers · Science & Mathematics · 11/03/2011

  7. 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

  8. Area of circle = pi r^2 = 64pi. A 45 degree arc is 1/8 of the circumference. Hence the area of its sector is 8pi = 25.13in^2

    2 Answers · Science & Mathematics · 20/07/2012

  9. 1)360/20 = 18 ; 2) 18/360 = 1/20 3) Area of Circle is Pi X r^2. So r = 10 & Pi = 3.142. r^2 = 100 so area of full circle is 314.2 Each segment is 314.2/20 = 157.1

    1 Answers · Science & Mathematics · 27/07/2013

  10. (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

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