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coolcat3 October 8th, 2013 11:08 AM

Help with finding an area of a sector
 
Hello, I am struggling to find the area of a sector when given the arc length s and central angle (Theta). I have the forumlas for it but the formula does not account for arc length s so I assume there is some type of exchange for another value. Any help would be appreciated.

Pero October 8th, 2013 11:16 AM

Re: Help with finding an area of a sector
 

coolcat3 October 8th, 2013 11:17 AM

Re: Help with finding an area of a sector
 
Thanks alot

coolcat3 October 8th, 2013 11:22 AM

Re: Help with finding an area of a sector
 
Quote:

Originally Posted by coolcat3
Hello, I am struggling to find the area of a sector when given the arc length s and central angle (Theta). I have the forumlas for it but the formula does not account for arc length s so I assume there is some type of exchange for another value. Any help would be appreciated.

Here is an example. s =.3456ft, Theta = 73.61, A=?

Pero October 8th, 2013 12:39 PM

Re: Help with finding an area of a sector
 
If you're working in degrees, rather than radians, then:





Once you have r, you have the area of the circle:



And the area of the sector is:



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