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GuthrieGeoGebraArea
Author:
Charles Guthrie
GeoGebra
New Resources
Rotating Points (Optical Illusion)
Ellipse as Envelope - Correspondence Method
"Compressed" Astroid as Envelope
Pelecoid
Stairs (Optical Illusion)
Discover Resources
Naming Points on the Coordinate Plane
Primer8
UN Physics 2016 IPA - 10
Distance Discovery Conf
Polygons & Angles
Discover Topics
Frequency Distribution
Root
Integers
Pie Chart or Circle Chart
Calculus