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Orthodiagonal Quadrilaterals
Author:
Steve Phelps
Topic:
Quadrilaterals
Kite? Rhombus? Isosceles Trapezoid?
GeoGebra
New Resources
"Compressed" Astroid as Envelope
Limaçon / Cardioid as a Locus - A Classical Construction
Construct a Square
Ellipse as Envelope - Correspondence Method
Pelecoid
Discover Resources
Sine Wave
Forum
Distributive property
Changing Grades - Task
Dandelin Spheres (how the various geometric definitions tie together!)
Discover Topics
Orthocenter
Poisson Distribution
Trapezoid
Median Value
Rotation