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Ruler
Author:
Eduardo Neto
,
Anthony OR 柯志明
Drag the ruler to move. Drag the red point to rotate. Use the slider to adjust the length.
GeoGebra
Anthony Or GeoGebra Institute of Hong Kong
New Resources
Congruent Figures
Congruent Sides & Angles in △s: Exploration
seo tool
Linear Equation Graphs: Thin Slice
Pythagorean Template: Integer Legs
Discover Resources
Martinez Test
Velocity field on a rigid lamina
Quiz
The Polynomial Constructor
Discover Topics
Incircle or Inscribed Circle
Random Variables
Pie Chart or Circle Chart
Arithmetic Operations
Solids or 3D Shapes