Question 494006
True or False? Three lines that intersect at the same point must all be in the same plane. Explain why or why not. 
--------------------
False
If you are in a rectangular room notice that the wall on your left
meets the wall in front of you in a line.
Notice that each of those walls meets the ceiling in two lines
that are in a different plane than the 1st line.
=========================
Cheers,
stan H.
=============