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Plane Geometry: Arbelos, Theorems and Problems.
Level: High School, College
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Arbelos, Theorems and Problems: Index
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Arbelos Definition by Archimedes
Three Semicircles, Tangent,
Diameters.
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Archimedes' Book of Lemmas: Proposition 4
Semicircles, perpendicular to diameter, Arbelos.
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Archimedes' Book of Lemmas: Proposition 5
Arbelos, Archimedean Twins,
Semicircles, Circles
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Archimedes' Book of Lemmas: Proposition 6
Arbelos, Semicircles, Circle.
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Archimedes Arbelos and Square 2.
Dynamic Geometry Software.
Step-by-Step construction, Manipulation, and animation. |
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Archimedes Arbelos and Square 1.
Dynamic Geometry Software.
Step-by-Step construction, Manipulation, and animation. |
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Geometry Expressions.
Arbelos and Archimedean Twins. |
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Geometry Problem 1301.
Arbelos, Semicircles, Diameters, Circle, Incircle, Incenter, Square, Midpoint, Concurrency. |
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Geometry Problem 1300.
Arbelos, Semicircles, Diameters, Circle, Incircle, Tangent, Perpendicular, Concurrent Lines. |
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Geometry Problem 1298.
Arbelos, Semicircles, Diameters, Circle, Incircle, Tangent, Angle Bisector, Perpendicular, Midpoint. |
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Geometry Problem 1297.
Arbelos, Semicircles, Diameters, Tangent, Angle Bisector. |
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Geometry Problem 1168
Construction of the Inscribed Circle of the Arbelos, Semicircles, Diameter, Circle, Triangle, Circumcircle, Tangent. |
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Geometry Problem
1071.
Arbelos, Semicircles, Diameter, Circle, Perpendicular, Common Tangent, Parallel, Collinear Points, 90 Degrees,
Midpoint. |
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Geometry Problem
1048.
Circles, Tangent, Perpendicular, Diameter, Angle Bisector. |
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Geometry Problem 989.
Arbelos, Semicircles, Diameter, Perpendicular, 90 Degree, Common External Tangent, Rectangle, Midpoint of Arc. |
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Geometry Problem
815.
Triangle, Incircle, Semicircles, Arbelos, Area. |
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Geometry Problem
812.
Four Tangent Circles, Common Tangent Line, Diameter, Area, Collinear Centers. |
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Geometry Problem 639
Semicircle, Diameter, Perpendicular, Inscribed Circle, Tangent, Arbelos, Congruence. |
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Geometry Problem 638
Arbelos and Inscribed Circle: Concyclic Points. |
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Geometry Problem 637
Semicircle, Diameter, Perpendicular, Inscribed Circle, Chord, Tangent, Arbelos. |
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Geometry Problem 636
Semicircle, Diameter, Perpendicular, Inscribed Circle, Common Tangent, Arbelos. |
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Geometry Problem 635
Semicircle, Diameter, Perpendicular, Inscribed Circle, Radius, Arbelos. |
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Geometry Problem
600
Circle, Area, Tangent, Semicircle, Tangency Point. |
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Proposed Problem 295.
Archimedean Twin Circles, Arbelos, Semicircles, Harmonic Mean, Radii,
Perpendicular. |
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Proposed Problem 100.
Circle
Area, Archimedes' Book of Lemmas, Arbelos.
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Archimedes'
Book of Lemmas
Exercise your brain. Archimedes wrote
the
"Book of Lemmas" more than 2200 years ago. |
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