Help with geometry

[Beja]

Hi, someone help!

see the attached picture.. what I am looking for is a formula to convert the linear value of the above brown section, to an angle.. the final value in degrees for angle A

thanks in advance.

 

[klaus]

A = 360 / 7 * 0.5 = 360 / 14

 

[Beja]

Thanks Klaus so much..
I can guess the other angle can now easily be completed by replacing "0,5" with 1.25 in the above Upstate .

 

[klaus]

Sure !