

Geometry Problems 311320: Circle, Semicircle, Chord, Diameter, Tangent, Cyclic quadrilateral, Geometric mean, Square, Right triangle, Altitude, Collinearity, Circumcircle, Incenter, Excenter




Proposed Problem 311.
Circle Inscribed in a Semicircle, Chord, Diameter. 

Proposed Problem 312.
Cyclic quadrilateral, Side extensions, Tangents. 

Proposed Problem 313.
Circle, Chord, Tangent, Perpendicular, Geometric Mean. 

Proposed Problem 314.
Tangent circles, Common external tangent line, Geometric Mean. 

Proposed Problem 315.
Three Tangent circles, Common external tangent line, Geometric Mean. 

Proposed Problem 316.
Circular segments and Inscribed Squares. 

Proposed Problem 317.
Right triangle and Inscribed Squares. 

Proposed Problem 318.
A Scalene triangle, Altitudes, Collinear points. 

Proposed Problem 319.
Triangle, Altitudes, Perpendiculars, Collinear points. 

Proposed Problem 320.
Triangle, Circumcircle, Incenter, Excenter, Collinear points. 








