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T5a
Author:
David Whittle
GeoGebra
New Resources
Ellipse, Hyperbola and Circle as Envelopes
Ellipse as Envelope - Correspondence Method
Simplifying Radicals: Geometric Thin Slice
Stairs (Optical Illusion)
Slope of a Straight Line: Run and Rise
Discover Resources
Vertical Angles Rotation Proof
Quadratic Equation Graph Transformation
Linear Equations & Inequalities
Construct a square that passes the drag test
部分、整體與百分數
Discover Topics
Probability
Calculus
Trigonometric Functions
Cone
Incircle or Inscribed Circle