Triangles: Theorems and Problems 19




Proposed
Problem 374.
Triangle, Incenter, Internal Angle Bisectors. 

Proposed
Problem 371.
Square, Inscribed circle, Triangle, Area. 

Proposed
Problem 370.
Triangle with squares, Circumcircles, Tangent circles. 

Proposed
Problem 368.
Triangle, 120 degrees, Angle bisectors, Perpendicular. 

Proposed
Problem 366.
Scalene triangle, Circumcircle, Angles, 60 Degrees, Equilateral triangle. 

Proposed
Problem 364.
Obtuse triangle, Congruence, Circles, Diameter, Curvilinear triangle, Area. 

Proposed
Problem 363.
Right triangle, Congruence, Angles. 

Proposed
Problem 361.
Right triangle, Incircle, Incenter, Tangency points, Angle. 

Proposed
Problem 360.
Area of a triangle, Curvilinear triangles, Circles, Diameters. 

Proposed
Problem 358.
Isosceles triangle 808020, Circle, Angles, Congruence. 

Proposed
Problem 357.
Square, Exterior point, Triangles, Area. 

Proposed
Problem 356.
Square, Point inside, Triangles, Area. 

Proposed Problem
350.
Triangle, Cevian, Incircles, Tangents, Tangency Point, Angles. 

Proposed Problem
349.
Triangle, Cevian, Incircles, Tangents, Tangency Point. 

Proposed Problem
347.
Triangle, Altitude, Perpendicular, Circle, Concyclic points. 

Proposed Problem
341.
Triangle, Inscribed circle, Tangent, Semiperimeter. 

Proposed Problem
340.
Triangle, Angle Bisectors, Perpendiculars, Distances. Exterior Point. 

Proposed Problem
339.
Triangle, Angle Bisectors, Perpendiculars, Distances. Interior Point. 

Proposed Problem
338.
Triangle, Circumcircle, Inscribed Circle, Exterior angle bisector, Concyclic points. 

Proposed Problem
329.
Triangle, Altitudes, Circle, Diameter, Concyclic points. 
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