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Mathematics 15 Online
OpenStudy (anonymous):

Which lines must be parallel if ∠15 is congruent to ∠7? http://puu.sh/1pNr9 A. x and z B. c and d C. x z and c d D. no lines are parallel

OpenStudy (anonymous):

? sorry

OpenStudy (anonymous):

<15 and <7 are corresponding angles and line z would be the transversal. the lines that line z intersects are parallel

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