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Author:
Paul Jorgens
Varignon's Quadrilateral
Plot the points A(-5,-3), B( 3,-7), C( 7, 1) and D(-1, 3) and draw the quadrilateral.
GeoGebra
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Angles and Intersecting Lines: Quick Investigation
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Slope Field (1)
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Discover Resources
Parallelogram Addition
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Videos - The Math of the Golden Ratio
Constructing Parallels
Copy an Angle
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Quadratic Functions
Square
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Scatter Plot
Percentages