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  1. ... sector goes like this A =(1/2)(r^2)(θ) where A is the area of a sector , r is the radius, and θ is the Central angle solving for θ: multiply the equation to 2 so that we can cancel 1/2 2A=(r^2)(θ) divide both sides by r^2...

    2 Answers · Science & Mathematics · 16/09/2010

  2. ... if you use proportions. Find the area of the entire circle A = π18² = 324π, for the entire 360° Now use the proportion to find the area of the sector , x 360°/324π = 105°/x 360x = 34020π x = 94.5 π in² ( the area of the ...

    1 Answers · Science & Mathematics · 08/03/2009

  3. ... also assume that you know how to find the area of a circle of diameter 50 metres... area by 26 to find the area of each sector . Similarly, you must know... of a single sector using the formula (theta x r²) / 2 (theta...

    1 Answers · Science & Mathematics · 19/12/2007

  4. You will need several formulas to solve this: area of the segment = area of the sector - area of the triangle bound by the chord and the radii * you have to ...

    3 Answers · Science & Mathematics · 23/07/2008

  5. Area of a sector defined by (r, dθ) is...1/2) r^2 dθ Substitute the formula for r, and the integrand is: 162...θ Integrate this from θ = 0 to θ = pi/18 The answer is...

    1 Answers · Science & Mathematics · 04/06/2010

  6. ...6 sqrt(pi). The formula you quote gives the area of the other sector , which subtends 240... the unshaded sector you have to find . It isn't really...question. In that case: a = pi r^2 (1 - 120 / 360) = 2pi...

    1 Answers · Science & Mathematics · 27/02/2008

  7. ... the shape into known shapes (square, rectangle, circle, and sectors ) and use formulas to find the area . Other way to put it in a graph and count no of squares (sq in or sq cm graph)

    2 Answers · Science & Mathematics · 13/10/2008

  8. ... would be a segment of a circle. The area is found by taking the area of the sector and subtracting the area ... of triangle: Heron's Formula s = (20 + 20 + 14)/2 = 27 A ...

    3 Answers · Science & Mathematics · 16/11/2010

  9. Area of a circle = Pi * (radius squared) So area of a sector = (Angle of the sector / 360) * Area of a circle So area of a sector = (Angle of the sector / 360) * Pi * (radius squared) BART

    4 Answers · Science & Mathematics · 20/05/2008

  10. ...unknown angle to 360 degrees should be the same as the ratio of the area of the sector to the area of the circle. First, find the area of the circle of radius 5.2: A = pi(5.2)^2 = 84.95 Then solve the following proportion: x/360...

    4 Answers · Science & Mathematics · 11/11/2008

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