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สำเนาของ Proof Without Words
Author:
นิภาวรรณ มหาวรรณ์
,
Steve Phelps
Drage the points. Drag the slider. What does this prove? How does this prove?
GeoGebra
Based on
http://45.media.tumblr.com/9e608e03763922f7620fa7b21487f640/tumblr_nywxpgk6631uk13a5o1_500.gif
New Resources
Ellipse as Envelope - Correspondence Method
Isosceles Triangle: Quick Construction
Construct a Square
Limaçon / Cardioid as a Locus - A Classical Construction
Slope of a Straight Line: Run and Rise
Discover Resources
Activity 20
TB P 172 #5
Ellipse and Annulus - When are the areas the same?
Trigonometri
MODULE 25 INPUT BOX
Discover Topics
Geometric Transformations
Confidence Interval
Rotation
Perimeter
Centroid or Barycenter