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GeoGebra
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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
apec
Using Experimental Probability to Estimate π - Monte Carlo Method
Linear Systems + Relationships Between Coefficients and Solutions
Area Between Two Curves
Average Value
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Menelaus' theorem
pentagonal tiling from squares and parallelograms
Grade 7 Introduction
Balloon
Linear Equation Generator
Discover Topics
Trapezium
Similar Triangles
Step Functions
Confidence Interval
Limits