Refer to figure 1 below. Notice that the cue ball is now positioned differently. However, the aim point on the cushion (designated by point "X") is still the same because the cue ball is still on the same line "side A". But how do you calculate the point "X" in this position?
When using our triangle method, we can see that we are missing two points (point Y and point X). In this case, guesswork would be prudent.
Figure 1
Using the triangle as your basis, make an educated guess of where you think point "X" is suppose to be. After doing that, simply draw a line from point "X" towards and beyond your cue ball towards the other end of the table at point "Y". Now, you have point "Y" figured out. From there, use point "Y" and the position of your object ball (the 3 ball in the illustration) and determine the halfway point or mid point. Once that is done, draw a line from the mid point towards the opposite rail towards point "X". The mid point and point "X" should be on the same line parallel to the short rail. If not, go back to the beginning and pick another spot on the cushioin where you think point "X" will be and start re-calculating.
