# SOLUTION: A quadrilateral MUST be a parallelogram if it has A) one pair of adjacent sides equal. B)one pair of parallel sides. C)a diagonal as axis of symmetry . D)two adjacent angles

Algebra ->  Algebra  -> Parallelograms -> SOLUTION: A quadrilateral MUST be a parallelogram if it has A) one pair of adjacent sides equal. B)one pair of parallel sides. C)a diagonal as axis of symmetry . D)two adjacent angles       Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Geometry: Parallelograms Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Parallelograms Question 430390: A quadrilateral MUST be a parallelogram if it has A) one pair of adjacent sides equal. B)one pair of parallel sides. C)a diagonal as axis of symmetry . D)two adjacent angles equal . E) two pairs of parallel sides.Answer by richard1234(5390)   (Show Source):