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Parallelogram
Author:
EmilyS
GeoGebra
New Resources
Variation Theory Parallelogram Proofs
Droste effect
探究由平行線和截線所成的角
alg2_05_05_01_applet_exp_2_flvs
Poorly Drawn Parallelograms 3
Discover Resources
Reflex, obtuse and acute animation
Mesures d'angles
geogebra
Solving Quadratic Linear Equations Graphically Game
GoGeometry Action 18!
Discover Topics
Similar Triangles
Pyramid
Incircle or Inscribed Circle
Congruence
Inequalities