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GeoGebra
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Elliptical Helix
Author:
Steve Phelps
GeoGebra
New Resources
Construct a Square
Linear Cross Section Exercise
Stairs (Optical Illusion)
"Compressed" Astroid as Envelope
Bottema's Theorem
Discover Resources
Tchebychef's linkage
sample
Angle tricks2
Diviser Deux Fractions
Quiz 2
Discover Topics
Symmetry
Definite Integral
Pythagoras or Pythagorean Theorem
Tangent Line or Tangent
Quadratic Functions