Bisecting a Line Segment Using Sticks of Equal Length
This Demonstration shows a construction of the perpendicular bisector of the segment using sticks of a given length . For this construction, it is necessary that . The dark green sides are all of length . The line is the perpendicular bisector of , and is the midpoint of .
This Demonstration illustrates the construction of Figure 8.7 in [1, p. 115].
 G. E. Martin, Geometric Constructions, New York: Springer, 1998.