The [color=#c51414]nine point circle[/color] is also called the [color=#c51414]Euler's circle[/color] or the [color=#c51414]Feuerbach circle[/color]. A nine point circle can be constructed with any type of triangle. It is a circle that passes through the [b]three perpendicular feet[/b], [b]three midpoints of the sides[/b] of the triangle, and the [b]three midpoints of the segments that join the vertices and the orthocenter[/b]. (9 points all together) [b]Try to build your own nine point circle using this information![/b]
Citation http://jwilson.coe.uga.edu/emt668/emt668.folders.f97/anderson/geometry/geometry1project/construction/construction.html