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Plane Geometry: Open Problems, High School, College

 

Open Geometry Problems - Index 5

Online education degree: Open geometry problems


College Geometry Online

Lester Circle Theorem

Geometry Problem 905: Lester Circle Theorem.
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Geometry Problem 901

Static Diagram of problem 901
Dynamic Geometry Problem 901
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Intersecting Circles, Common External Tangent, Secant, Circumcircle, Concyclic Points, Cyclic Quadrilateral. GeoGebra, HTML5 Animation for Tablets

Geometry Problem 894

Geometry Problem 894
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Triangle, Angle, 60 degrees, Incenter, Midpoint, Parallel Lines.
GeoGebra, HTML5 Animation for Tablets

Geometry Problem 893

Geometry Problem 893
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Triangle, Circumcircle, Incenter, Circle, Tangent, Collinear Points.
GeoGebra, HTML5 Animation for Tablets

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