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a triangle ABC cut into 2
Author:
Arthur Lee
Something special about this triangle
GeoGebra
Drag the vertices and find out what property of this triangle is unchanged. Try another one here:
http://www.geogebratube.org/material/show/id/58145
New Resources
Poorly Drawn Parallelograms 3
What is an Isogonal Conjugate?
alg2_05_05_04_applet_exp_fxn_flvs
Dissections by Guillermo Bautista
Droste effect
Discover Resources
Translation Screensaver
reflect in the line x=3
Wicked New Patterns 2
angle sum theorem
H2M L12 Q5
Discover Topics
Polynomial Functions
Quadrilaterals
Standard Deviation
Secant Line or Secant
Statistical Characteristics