A Construction of a Parallelogram
Using Geometer's Sketchpad
by David Wise


Note: I recommend that this page be printed out, so that the instructions are easier to follow.


Definition: A parallelogram is a quadrilateral whose opposite sides are parallel.


Click here to link to a new GSP sketch to complete a construction of a parallelogram.

When completing a construction, use the definition as a guide.

Using only the definition of a parallelogram, what measurement of the sides of a parallelogram must be used to support the claim that your construction is of a parallelogram?


If you have any questions while trying to complete this investigation, or suggestions that would be useful, especially for use at the high school level, please send e-mail to esiwdivad@yahoo.com.

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