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Plane Geometry: Ptolemy's Theorems and Problems
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Ptolemy's Theorem.
Cyclic quadrilateral |
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Cyclic
Quadrilateral: Ratio of the Diagonals
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Cyclic Quadrilateral.
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Jigsaw Puzzle
Ptolemy's Theorem.
22 Piece Polygons. |
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Problem 483.
Square, Angle, 90 degrees, Measurement, Ptolemy's theorem. |
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Problem 478.
Triangle, Sides, Circumradius, Circumcenter, Circumcircle, Ptolemy's
theorem. |
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Problem 474.
Parallelogram, Diagonal, Circle, Vertex, Ptolemy's theorem. |
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Proposed Problem 330.
Cyclic quadrilateral, Perpendicular diagonals, Area, Circumcenter,
Ptolemy's theorem. |
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Proposed Problem 301.
Tangents to a circle, Secants, Square, Ptolemy's theorem. |
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Proposed Problem 300.
Tangents to a circle, Secants, Square, Ptolemy's theorem. |
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Proposed Problem 291.
Triangle, Circle, Circumradius, Perpendicular, Ptolemy's theorem. |
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Proposed Problem 261.
Regular Pentagon inscribed in a circle, sum of distances, Ptolemy's
theorem.
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Proposed Problem 256.
Equilateral Triangle, Circumcircle, Point, Vertices, Distances,
Ptolemy's theorem.
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Proposed Problem 63:
Heptagon Regular, Side and Diagonals,
Ptolemy's theorem. |
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