lets 3 points A,B,C in the top floor of the room A(1, 1.5,5) and B(2,1,5) and C(2,2,5) the another point P(x,y,z ) in the room ,the distance between P-A is 3.301m and P-B is 3.61 m and P-C is 3.62m . Now we have to calculate the position of the point P(x,y,z) ?