Nine-Point Circle
The Nine-Point circle for any triangle passes through the
three mid-points of the sides, the three feet of the altitudes, and the
three mid-points of the segments from thr respective vertices to orthocenter.
The center of the circle
is labeled with an N.
Click here for a GSP script to consruct the nine-point
circle of a triangle, given any three points (the vertcies of a triangle).
Click here for a GSP script
to consruct the center of a nine-point circle of a triangle, given any three
points (the vertcies of a triangle).