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Geometry Session 3: Notes
 
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Notes for Session 3: Homework


Note 6

Some people define trapezoid as "at least one pair of parallel sides" and others, as used here, as "exactly one pair of parallel sides." It's a matter of taste; there are no strong reasons to do it one way instead of the other, hence the differing opinions.

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Note 7

Another, more common definition of an isosceles trapezoid is a trapezoid with the nonparallel sides congruent.

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