If you have two lines, and they intersect, there is only one point that they intersect at. For example, if you draw a graph and two lines intersect, you will see that its only on one point.
Question : <span>The bottom of the ladder must be 3 feet from a wall the latter is 12feet long how far above the ground does the Ladder touch the wall </span> Answer : <span>11.6ft </span> I hope it helps and please press brain (^_-) Rie