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related to: area of a sector of a circle

1. ### maths, prove area of circle ?

...3) Therefore, the area of maximum shape for a given perimeter must have...convex shape. 4) Only the circle has this property. ... circle . Imagine that the sectors of the circle is ...

5 Answers · Science & Mathematics · 04/12/2007

2. ### surface areas of solids i need help asap please?

let the radius of the circle be r circumference = 2pi r and the edge of the sector will be 2pi r/3 Next, we take that edge and turn it into a new circle , the base of the cone. circumference is now 2pi r/3 so diameter of the new circle ...

1 Answers · Science & Mathematics · 19/01/2013

The area of a circle is Pi x R2 = 3.14 x 9 x 9 = 254.5 sq in. If the... area of the section is 42.4 in sq. If you double the central angle, the area doubles.

2 Answers · Science & Mathematics · 17/04/2011

4. ### How can I divide a circle into equal parts of a small central angle and find its area using formula 22/7*r*r?

The area of each segment will be: (22/7*r*r)/n where n is the number of equal sectors you have divided it into. So, yes the formula will work.

1 Answers · Science & Mathematics · 06/06/2008

5. ### i dont under stand surface area and volume..................?

...respectively. Lateral surface area of a cone r and l are the radius and slant height, respectively. Circular sector r and θ are the radius and angle... disk is the area enclosed in a circle .

4 Answers · Science & Mathematics · 02/10/2006