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Grandpa's Dissection
Author:
John Golden
From a puzzle found at Alexander Bogomolny's Cut the Knot.
http://www.cut-the-knot.org/pythagoras/Proof99Solution.shtml
GeoGebra
New Resources
Parallelograms: Quick Investigation
Taylor Polynomial
Poorly Drawn Parallelograms 2
What is an Isogonal Conjugate?
探究由平行線和截線所成的角
Discover Resources
ΑΚΡΟΤΑΤΑ (ΜΙΑΣ ΜΕΤΑΒΛΗΤΗΣ)
Graph when n = 1
Triangle Reflection
Rigid Motion
The Nine Point Circle
Discover Topics
Functions
Exponent
Translation
Logarithmic Functions
Isosceles Triangles