3L 3E Solution
Given the segment AB.
- Construct the circle C1 with center A and radius AB
- Construct the circle C2 with center B and radius AB, intersecting circle C1 at C and D
- Construct line CD
Any point of a perpendicular bisector is equidistant to both A and B. The two circles ensure that AC=BC and AD=BD and so both C and D are on the perpendicular bisector of segment AB.
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