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GeoGebra
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
More GeoGebra at
mathhombre.blogspot.com
New Resources
#12 Optimal Regular Hexagon
#15 Construct 2 Circles Inside a 3rd
#9 Two Circles That Touch Once
math171_4_6_trapezoidal_rule
#8 Draw Three Circles
Discover Resources
area between two functions rotated around x-axis
stPerpL
Cross Sections of a Cube
Exploring Rotations
Isosceles Triangle
Discover Topics
Cube
Polynomial Functions
Congruence
Quadratic Equations
Hyberbola
