Leo Fogel – Resources – GeoGebra

Triangle Proportionality Theorem
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Leo Fogel
Properties of Parallelograms
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Nine-Point Circle
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Euler's Line
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Leo Fogel
Properties of Parallelograms
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Leo Fogel
Centers of a Triangle
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Leo Fogel
Distance Formula
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Leo Fogel
TEAC 880E
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Leo Fogel
Project-Linear Inequalities
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Leo Fogel
Project-Adding and Subtracting Integers
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Leo Fogel
Project-Dilation
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MG-Segment Triangles - 2 Medians
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Leo Fogel
MG-Nine Point Circle
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MG-Tangents to the Circumcircle
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MG-Segment Products
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Leo Fogel
MG-Ptolemy's
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MG-Pedal Triangles
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Leo Fogel
MG-Euler's DS Thm
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Leo Fogel
MG-Collinearity
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Leo Fogel
H-Angle Sum of a Triangle
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Leo Fogel
MG-Ceva's
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Leo Fogel
MG-Brianchon's
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Leo Fogel
H-Fractions and Attached Text
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Leo Fogel
H-Slope Triangle
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Leo Fogel