1942. Right Triangles Inscribed In Feuerbach Hyperbola

1941. A Property Of Orthocentroidal Circle

1940. Equal Area

1939. A Locus For K007-Lucas Cubic

1938. Collinear Points

1937. Concurrent Tangents

1936. An Equilateral Triangle

1935. Collinear Points

1934.A Property Of Jerabek Hyperbola

1933. A Nine-Point Center On Euler Line

1932. An Orthocenter On Euler Line

1931. A Circumcenter On Euler Line

1930. Remarks On A General Conic

1929. A Locus For K004-Darboux Cubic

1928. A Conic Centered At X(1147) Dedicated To Sir Francisco Javier García Capitán on his birthday!

1927. A Common Tangent

1926. Triangles With Same Area

1925. A Simple Construction For X(575)

1924. Constant Ratios In Triangle

1923. Points On The Conic Centered At X(244)

1922. Triangle Area

1921. Triangles With Same Area