How to find out the coordinates of the edge of the circle knowing the initial position, radius and angle?

Question

Mathematics

Hello! Help find a formula to find the coordinates of point B in the figure, knowing the angle towards the point from the center of the circle, the coordinates of the center (may vary) and the radius of the circle. Not good at calculations. You can also take into account the built-in methods of Unity3D (Vector3/Vector2, Quternation...). Thank you very much in advance!

PS I forgot to correct the angle, initially I drew a temporary value, the correction is 135 degrees relative to Unity3D, but this is not very important. I think the meaning is clear to everyone ...

Answer 1

I didn’t quite understand why you have 180 degrees there, but like this:
y = R*sin(angle)
x = R*cos(angle)