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Author:
Harry Drew
Triangle DEF has been constructed in such a way that segments DE and EF are always congruent to AB and BC, respectively.
GeoGebra
Move vertices around until AC is congruent to DF. What else do you notice?
New Resources
Multiplication Area Model with Feedback: 3 Digit by 2 Digit Number
Floch, fractal, iteration, custom tool.
apec
The black friday GeoGebra :)
Untitled
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Spiral1
nonagon
MichelleMittaz_Invariants
Parallel Lines/Transversal
Sin título
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Diagrams
Square
Inequalities
Natural Numbers
Similar Triangles