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math.GM2026
Perspective Central Triangles Formed from a Triangle and a Transversal
Stanley Rabinowitz, Ercole Suppa
Let be a line not passing through any vertex of a triangle and not parallel to any side. Line meets the sidelines , , of at points…
math.GM2025
More Relationships between a Central Quadrilateral and its Reference Quadrilateral
Stanley Rabinowitz, Ercole Suppa
The diagonals of a quadrilateral form four associated triangles, called half triangles. Each half triangle is bounded by two sides of the quadrilateral and one diagonal. If we loca…
math.GM2022
Relationships between a Central Quadrilateral and its Reference Quadrilateral
Stanley Rabinowitz, Ercole Suppa
Let P be a point inside a convex quadrilateral ABCD. The lines from P to the vertices of the quadrilateral divide the quadrilateral into four triangles. If we locate a triangle cen…