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The parallelogram is an important geometric figure.
For example, the Parallelogram Law is used to verify vector addition.
Yet, In the every day world, --- perhaps, because of its lack of symmetry --- it appears less often than other shapes.
In this space, find different aspects of this unique quadrilateral...
Formulas and examples - click lower right corner to view (larger) image.
Swiss Air logo
Area = bh
Perimeter = 2(b + s)
Which segment is longer? a or b?
(The answer and other illusions are below and to the left.)
Webcomic #71 "Secret Admirer" (featuring a singing parallelogram)
(click lower right to view)
If you have a parallelogram image that you'd like to add, let us know!