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The sum of the angles of a quadrilateral
Author:
Daniel Mentrard
Topic:
Angles
,
Quadrilaterals
update of my 2009 file (old GUM)
GeoGebra
New Resources
Isosceles Triangle: Quick Construction
Ellipse, Hyperbola and Circle as Envelopes
Angles and Intersecting Lines: Quick Investigation
Bottema's Theorem
Slope Field (1)
Discover Resources
Envelope Method-IanKIeme
Simulation-LeoYang
Homework 3.3
Thomson Problem v37
Integer Subtraction Equal Addends
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Parametric Curves
Addition
Histogram
Linear Equations
Inequalities