Find the radius of a circle given arc length ??

[musiclovr95]

Hi, I am studying the circular functions and their graphs. We are learning about the arc lengths and in one instance, theta in radians is given: 3 pi over 4 ; as well as the arc length: 6 pi. How would I find the radius?

 

[Aladdin]

Hi, I am studying the circular functions and their graphs. We are learning about the arc lengths and in one instance, theta in radians is given: 3 pi over 4 ; as well as the arc length: 6 pi. How would I find the radius?

s=r(theta).

 

[Denis]

Go learn: http://www.themathpage.com/atrig/arc-length.htm