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Mathematics 16 Online
OpenStudy (anonymous):

if two lines are coplanar then thet are (sometimes,always,never) parallel. Which one?

jimthompson5910 (jim_thompson5910):

two lines are coplanar, so they exist in the same plane (their entire line is in the same plane) we could have these 3 possibilities |dw:1413953217270:dw| case A is two parallel lines that never intersect case B is the two lines intersecting at exactly one point case C is where one line lies perfectly on top of the other (making it look like there's only one line)

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