This page uses JavaSketchpad. You may drag any of the red points, and the construction will adjust accordingly.

Explanation of the construction: This constructs the perpendicular bisector (construction 1) FG of segment ED. FG contains C since C is equidistant from D and E. This is the same construction as construction 2, just with C on the line.

Back to ruler and compass constructions main page.

Back to Ken Brakke's home page.