Let's assume the laptop is opened at 90 degrees (this is done for the sake of simplicity, is actually irrelevant) then each plane would be analogous to the 'x' and 'y' planes you see in a Cartesian Plane, which only intersect at one point called the Origin. Any two lines with different slopes will intersect only one time (if they're parallel they have the same slope)
I want to play with you and your family a very happy and prosperous New year to you and your family a very happy and prosperous New year to you and your family a very happy and prosperous and your bucket is filled to get the