GeoGebra
Home
News Feed
Resources
Profile
People
Groups
App Downloads
GeoGebra
Warm Up Locus Problem in GIHK workshop (Oct 13, 2012)
Author:
Arthur Lee,
GeoGebra Institute of Hong Kong
Investigate locus of orthocentre when one vertex moves on a fixed circle.
Why does D move on a circle? From the hint, explain why ADCE is always a parallelogram.
Discover Resources
Drawing- Austin
primitive sequences
kubus 2
[Quantum Continuum]: Best Friends - Hippasus and Pythagoras - Root 2^n Order - Absolute Values - Error Zero - [graphical method]
quay mat phang
New Resources
Improper Fractions Visual
Fermat Point of a Triangle
Post shadow, Sun behind
O'Hara.Euler.ggb.
Exploring Parallel Lines
