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Warm Up Locus Problem in GIHK workshop (Oct 13, 2012)
Author:
Arthur Lee
Investigate locus of orthocentre when one vertex moves on a fixed circle.
GeoGebra
New Resources
Introduction
Piano. Keyboard.
Play C3 E3 G3 C4_C4
Ellipse, Hyperbola and Circle as Envelopes
"Compressed" Astroid as Envelope
Discover Resources
Pythagoras' Theorem with areas included
setlinethickness
GeoGebra Probability and Statistics Quickstart Info
a-ced11
ChinA_construction
Discover Topics
Fractions
Means
Incircle or Inscribed Circle
Isosceles Triangles
Optimization Problems