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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