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exterior angle of triangle demo
Author:
Ngan Hok Hei
through dragging the point, students should be able to see something being conserved.
GeoGebra
New Resources
Periodic Functions
What is an Isogonal Conjugate?
Exploring Simple Loci 探究簡單軌跡
Shade a spheric triangle with "surface".
alg2_05_05_04_applet_exp_fxn_flvs
Discover Resources
Factor Trinomial 11 in Steps
Points of Concurrency
AB+2CD
Page251#11b_HEF
Meshing any Lego gears on a regular lift arm grid
Discover Topics
General Quadrilateral
Circumcircle or Circumscribed Circle
Rhombus
Similarity Transformation or Similarity
Centroid or Barycenter