Online Geometry: Cyclic Quadrilateral Theorems
and Problems Table of Content 4




Proposed Problem 335.
Cyclic Quadrilateral, Perpendiculars to Sides. 

Proposed Problem 334.
Cyclic Quadrilateral, Perpendiculars to Diagonals. 

Proposed Problem 332.
Cyclic quadrilateral, Ratio of diagonals, Similarity. 

Proposed Problem 330.
Cyclic quadrilateral, Perpendicular diagonals, Area, Circumcenter. 

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

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

Proposed Problem 301.
Tangents to a circle, Secants, Square. 

Proposed Problem 300.
Tangent to a circle, Secants, Square. 

Proposed Problem 293.
Inscribed Quadrilateral, Perpendicular, Rectangle, Isosceles Right
triangle, Area, Similarity. 

Proposed Problem 216. Quadrilateral, Angle Bisectors, and
Concurrency.

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