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พร้อมพันธ์ สุวรรณแสน
GeoGebra
New Resources
Open Middle Inscribed Angle Exercise (1)
Pythagorean Theorem (Special Case)
Mapping Rectangles into Discs
π = 4 ?
Umbrella Holder
Discover Resources
Portfolio
Slope of a Curve Investigation
Convex lens ray diagram
Scaled Triangles
Visualizing Integer Addition on the Number Line
Discover Topics
Conditional Probability
Similarity Transformation or Similarity
Equilateral Triangles
Reflection
Poisson Distribution