# Thread: Find the angle in a circle with two parameters.

1. ## Find the angle in a circle with two parameters.

Hello guys I am struggling to find the angle beta that is shown in red in the figure.
The only information in the problem are the parameters L, theta=wt, and r=radius.
I do appreciate your help, particularly if the problem can't be sold, and then needs additional information

Cheers

2. ## Re: Find the angle in a circle with two parameters.

Clearly, given only that information, beta can be any angle. You can "swing" the pendulum through any angle without changing wt, r, or L.

3. ## Re: Find the angle in a circle with two parameters.

Hello,

Thanks for your help. So, in other words, you are saying that is not possible to find a clear relationship between theta and beta with the information provided by the problem.

Thanks.