alegross – Resources – GeoGebra

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Menelaus Exploration Mth 583
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2.3.3 Orthocenter at a vertex when triangle is Right
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1.3.6 Circle from 3 points
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1.3.7 Midpoint Quadrilateral (always Parallelogram!)
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1.3.8 Quadrilateral Conjectures
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Ex 2.2.2 Median Concurrence Ratio
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Ex 2.2.3
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1.4.1
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Ex 2.2.7 Median Divides Triangle into 2 equal subtri
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2.2.10 Congruent Subtriangles in Equilateral, Equal area for any
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2.3.1 Concurrence of Altitudes of any Triangle (Orthocenter)
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2.3.2 Orthocenter and Centroid
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