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If two opposite sides of a quadrilateral are perpendicular and congruent, then the quadrilateral is a parallelogram. A. True B. False
answered
Dec 7, 2017
Mathematics
high-school
3
votes
232k
views
Roman numerals in an outline signify main ideas. true or false
answered
Jul 15, 2017
English
high-school
1
vote
192k
views
How do i divide negative numbers
answered
Apr 3, 2017
Mathematics
middle-school
3
votes
63.3k
views
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