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High School Geometry
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Demonstrations 161  180 of 309
Intersecting Chords Theorem
Opposite Angles of a Quadrilateral in a Circle
Largest Triangle Inscribed in a Circle
Largest Isosceles Triangle Inscribed in a Circle
Fractal Right Triangle
Intersection of Two Circles
Intersection of a Line and a Circle
Ship Sailing over the Horizon
Einstein's Most Excellent Proof
Circles & Triangles
Pythagorean Analogs for Similar Triangles
Wittenbauer's Parallelogram
An IMO Triangle Problem
Three Points Determine a Circle
Circumcircle and Incircle of a Triangle
Common Methods of Estimating the Area under a Curve
Two Points Determine a Line
Pythagorean Means
Unfolding a Cone
Reflection in Two Dimensions
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