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4สุพรรณี
Author:
สุพรรณี สาลี
GeoGebra
New Resources
Simplifying Radicals: Geometric Thin Slice
Ellipse, Hyperbola and Circle as Envelopes
Stairs (Optical Illusion)
Piano. Keyboard.
Napoleon's Theorem
Discover Resources
investigating absolute value
knot final
p.290 #8
Knot 0_1 (The Unknot)
Number Dots and Place Value
Discover Topics
Pythagoras or Pythagorean Theorem
Integers
Surface
Hyperbola
Sphere