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Needham Special Parallelograms
Author:
Lise Needham
Topic:
Parallelogram
GeoGebra
New Resources
探究由平行線和截線所成的角
Average Rate of Change: Graph a Function (1)
Shade a spheric triangle with "surface".
Average Rate of Change: Graph a Function (2)
Exploring Simple Loci 探究簡單軌跡
Discover Resources
Exploring the geometry of first and second derivatives.
Angle Bisector
Perpendicular Bisectors and Circumcenters!
Super Sand Company
Inequality regions
Discover Topics
Real Numbers
Complex Numbers
Secant Line or Secant
Root
Rotation