The narrator in this video shows you how to accurately make a line that is perpendicular to a given line using a compass. This technique involves using a compass to create two points on a line, which will be used to mark an "X" above the given line. Afterwards, all that is needed is to connect the points to create the line.
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Math How to Draw a perpendicular line from a point not on line

By WonderHowTo
Mar 2, 2010 08:15 AM
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