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Mathematics 15 Online
OpenStudy (anonymous):

what is a perpendicular line

OpenStudy (anonymous):

Линия, которая пересекает другую линию на 90 градусов.

OpenStudy (anonymous):

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OpenStudy (anonymous):

is this a serious question?

OpenStudy (anonymous):

YES

OpenStudy (anonymous):

ok its a line that meets another at 90 degrees

OpenStudy (unklerhaukus):

two lines are perpendicular , when they are at right angles with respect to one another

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