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Mathematics 13 Online
OpenStudy (anonymous):

what is the symbol when using lines , rays and line segments. it looks like an upside down U

jimthompson5910 (jim_thompson5910):

That is the intersection symbol. If you had two lines cross each other, the intersection is a single point. If you had two rays, one on top of the other, then their intersection is a line segment. There are various other examples, but the basic idea is the intersection of two geometric objects is everything that they have in common.

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