trapezoid

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trapezoid

by confuse mind » Wed Jul 18, 2012 7:55 pm
For a trapezoid, is it essential that one pair of opposite sides is NOT parallel?

Basically, I want to ask - Is parallelogram a trapezoid?
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by eagleeye » Wed Jul 18, 2012 7:58 pm
confuse mind wrote:For a trapezoid, is it essential that one pair of opposite sides is NOT parallel?

Basically, I want to ask - Is parallelogram a trapezoid?
It is not essential that one pair is not parallel. A parallelogram is a special trapezoid.