This is the step-by-step, printable version. If you PRINT this page, any ads will not be printed.
See also the animated version.
|After doing this||Your work should look like this|
|Start with a line and point R which is not on that line.|
|Step 1||Place the compasses on the given external point R.|
|Step 2||Set the compasses' width to a approximately 50% more than the distance to the line. The exact width does not matter.|
|Step 3||Draw an arc across the line on each side of R, making sure not to adjust the compasses' width in between. Label these points P and Q|
|Step 4||At this point, you can adjust the compasses' width. Recommended: leave it as is.
From each point P,Q, draw an arc below the line so that the arcs cross.
|Step 5||Place a straightedge between R and the point where the arcs intersect. Draw the perpendicular line from R to the line, or beyond if you wish.|
|Step 6||Done. This line is perpendicular to the first line and passes through the point R. It also bisects the segment PQ (divides it into two equal parts)|