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- anonymous

What is the area of a sector with a central angle of 190° and a diameter of 5.1 cm?

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- anonymous

What is the area of a sector with a central angle of 190° and a diameter of 5.1 cm?

- jamiebookeater

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- anonymous

i think the given are enough to solve the problem. .
do you know the formula?

- anonymous

area= r^2(theta) ; where theta is expressed in the radian form. .

- anonymous

(5.1/2)² *190 * pi/ 360 = 10.8
=

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- anonymous

My PC so slow that by the time I respond to you, you already gone :P

- anonymous

@chlorophyyll. i think it's not pi/360, but, pi/180.

- anonymous

I check the other sources, it says 1/2 of pi/180 --> pi/260

- anonymous

Oh, okay. That clears it up, thanks. I had my answer written down, but I wasn't sure if I was doing it right. c:

- anonymous

in changing degrees to radian it pattern the formula.
degree ( pi/180 deg). trigonometry fact.

- anonymous

Don't be confused between arc length and area sector!

- anonymous

can you give me a link of your reference?

- anonymous

http://www.worsleyschool.net/science/files/sector/calculations.html

- anonymous

@chlorophyll, thanks. .

- anonymous

http://www.wyzant.com/Help/Math/Geometry/Areas/Circles_and_Sectors.aspx

- anonymous

I check multi sources all the times, because I'm confused and very absent minded :(

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