Question 191396
what figure has two pairs of parallel sides but is not a parralelogram?
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Rectangle?
Square?
These 2 might be considered special cases of a parallelogram, tho.
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Then there's
Hexagon
Octagon
any regular polygon with an even # of sides.
NOTE: it doesn't exactly 2 pairs.  Having 3 pairs, as the hexagon, still has 2 pairs.

It's like "How many months have 28 days?"  All of them.