Software
The line through the incenter and circumcenter
Autor
Gutierrez, Antonio
Warendorff, Jay
Resumen
Let ABC be a triangle with inradius r, incenter I, and circumcenter O. Let the line OI intersect the circumcircle at D and E and the incircle at F and G, with F closer to D than to E. Then r²=DFxGE Componente Curricular::Ensino Médio::Matemática Componente Curricular::Educação Superior::Ciências Exatas e da Terra::Matemática