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Mathematics 11 Online
OpenStudy (anonymous):

Check my answer plz: Given the degree measures which statement is true? I went with t is perpendicular to line AB (its either that, Line AB is parallel to Line CD, t is parallel to Line CD, or Line AB will intersect Line CD. , so which 1?

OpenStudy (anonymous):

|dw:1413112757246:dw|

OpenStudy (bibby):

perpendicular lines form 90 degree angles around all the intersections like|dw:1413112951921:dw|

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