The last answer would be what your looking for !
Dont come for me if this is wrong, hoped I helped.
KINDEST REGARDS !
Answer:
120
Step-by-step explanation:
2x+x=360
3x=360
x=120
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)
