Definition:Quadrilateral/Parallelogram/Base
< Definition:Quadrilateral | Parallelogram(Redirected from Definition:Base of Parallelogram)
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Definition
In a given parallelogram, one of the sides is distinguished as being the base.
It is immaterial which is so chosen, but usual practice is that it is one of the two longer sides.
In the parallelogram above, line $AB$ is considered to be the base.