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An Important Fact
Author:
Ku, Yin Bon (Albert)
Can you find out how the lengths AC, CB and CD are related? You can drag the points A, B and C freely to see the changes in those lengths.
GeoGebra
New Resources
Blancmange curve (fractal)
Tutorial: Create lists of numbers and objects
Poorly Drawn Parallelograms
Construct a Conic
Shadow of a Cube
Discover Resources
Ellipse and hyperbola fun
Trapazoid
鐘面(移時分、延長時分)
circles_esha
Locus-8
Discover Topics
Quadratic Equations
Rotation
Ellipse
Constructions
Similar Triangles