Wednesday, February 10, 2010

True or false. - three lines that intersect at the same point must all be in the same plane?

three lines that intersect at the same point must all be in the same planeTrue or false. - three lines that intersect at the same point must all be in the same plane?
False. Two instersecting lines define a plane. A third line can intersect at the same point while still not being in the plane.





Consider the x, y, and z axes as an example.





~~*~*~~True or false. - three lines that intersect at the same point must all be in the same plane?
False, x, y and z axes all intersect at the origin but represent 3-dimensions.
I would say false.
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