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Mathematics Problems
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Demonstrations 1  20 of 52
Seven Cylinders Puzzle
New this month
Making the Three Areas Defined by Congruent Overlapping Circles Equal
Social Golfer Problem
Opposite Coefficients Method for Solving Two Equations in Two Unknowns
Solving a System of Two Linear Equations with Substitution
Lion and Man
The Lucas Ship Problem
Halving the Perimeter of a Zigzag Polygon
The Seven Bridges of Königsberg
Three Equal Segments from the Altitudes of a Triangle
Circumcircles of Two Midpoints and an Altitude
Bisecting the Area and Perimeter of a Triangle
Three Circles with Two Common Tangents
Reflections of a Line through the Orthocenter in the Sides of an Acute Triangle
Squares on a Line Segment
Implicit Function Transformations Quiz
Function Transformations Quiz
The Secretary Problem
Inconsistent Sets of Statements from Knights and Knaves
A Bitter Chocolate Problem
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