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Ruler
Author:
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
Slope of a Straight Line: Run and Rise
Introduction
Ellipse, Hyperbola and Circle as Envelopes
Angles and Intersecting Lines: Quick Investigation
Slope Field (1)
Discover Resources
Polar Area
Exploring Exponential Functions
Olimpiada Baia Mare 3 X.
triangle reflection
Meeting Ms. Structure
Discover Topics
Area
LCM and GCD
Trapezium
Equations
Isosceles Triangles