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GoGeometry Action 59!
Author:
Tim Brzezinski
Topic:
Parallelogram
,
Quadrilaterals
Creation of this applet was inspired by a
post
from Antonio Gutierrez (
GoGeometry
). Feel free to move any of the BIG POINTS anywhere you'd like.
How can we formally prove what this applet informally illustrates?
GeoGebra
Quick (Silent) Demo
New Resources
Simplifying Radicals: Geometric Thin Slice
Bottema's Theorem
Supplementary Angles
Parallel or Not? (V2)
Angles and Intersecting Lines: Quick Investigation
Discover Resources
Definite integral approximation
MovingPoints
Derek anderson
Rotate translate reflect
Homework, Symmetries of points and lines.
Discover Topics
Confidence Interval
Continuity
Trigonometric Functions
Variance
Equations