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Constructing Perpendicular Lines (using a straightedge and compass)

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Xuất bản 09/08/2016
Did you know that we can draw perpendicular lines using just a straightedge and a compass (without a set square)? In that case, we say that we CONSTRUCT perpendicular lines. To learn how to do it, watch this video. 1st part of the video: For given line a and point T on this line, we construct line b which is perpendicular to the line a and goes through point T. 2nd part: For given line c and external point T, we construct line d which goes through point T and is perpendicular to line c. Constructing perpendicular lines on paper. Video without words. Thanks to Rex Boggs, Rockhampton Grammar School, Australia ( ) for help with the English translation. Music by longzijun, . My math materials in English: . My (whole) website: .
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