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1. How do I find the central angle of this sector ?

... 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. Area of a sector of a circle.?

... 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. what is the sector formula ?

... 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. Find the area of a segment formed by a chord 8 inches long in a circle with radius of 8 inches?

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. How would I find the area of the petal of a 36-leafed rose?

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. geometry question?

...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. overlaping shapes. how do you find the area ?

... 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. Trig question: how do i find the area of this circle with chord?

... 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. If i had a sector of a circle how would i work out the area of the sector ( formula only please no answers)?

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. how do you find the angle in a sector ?

...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