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Area of Parallelograms

Author:
Anthony OR 柯志明
Topic:
Area, Geometry, Parallelogram, Rectangle
Drag the red point to change the shape of the parallelogram. Is the area of the parallelogram always equal to that of the rectangle? What is the area of the parallelogram? Check the "Dissect" box to explore.
Anthony Or. GeoGebra Institute of Hong Kong.

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