How can I calculate center of a circle $x,y$? I have 2 points on the circumference of the circle and the angle between them.
The 2 points on the circle are $P_1(x_1,y_1)$ and $P_2(x_2,y_2)$. The angle between them is $\theta$. I know all these values; how can I calculate the center from these values?