title: When two points of a triangle are known, how can we find the third point on a circle?
body: <p>Suppose there is a triangle ABC on a circle, where A is the center of the circle and B and C are two points the the boundary of the same circle, we know the following things about this triangle: </p>
  
  <ol>
  <li>2-d Coordinate value of A (x1,y1) i.e. (357,257)</li>
  <li>2-d Coordinate value of B (x2,y2) i.e. (93,169)</li>
  <li>Distance from A to B is 278 (radius of the circle)</li>
  <li>Distance from A to C is 278 (radius of the circle)</li>
  <li>Distance from B to C is 244 </li>
  <li>angle ∠BAC ≡ ∠CAB ≡ ∠A = 52°</li>
  </ol>
  
  <p>Now the question is:</p>
  
  <p>How to find the 2-d coordinate value of Point C (x3,y3) ???</p>