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Triangle geometry / Angle / Euclidean plane geometry / Equations / Pythagorean theorem / Triangle / Right triangle / Area / Special right triangles / Geometry / Triangles / Euclidean geometry
Date: 2013-09-03 14:21:05
Triangle geometry
Angle
Euclidean plane geometry
Equations
Pythagorean theorem
Triangle
Right triangle
Area
Special right triangles
Geometry
Triangles
Euclidean geometry

  This brainteaser was written by Derrick Niederman.  The triangle below lies on a flat surface and is pushed at the  top vertex. The length of the congruent sides does not  change, but t

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