1995. Circumcenter at Midpoint of BC

1994. Collinear Points

1993. A Circle Centered At X(381)

1992. A Geometric Construction For Inverse of 3rd Lemoine Circle Respect to 2nd Lemoine Circle

Dedicated to Francisco Javier García Capitán on the occasion of his birthday.

1991. Circumcenter On Euler Line

1990. Concurrent Circles