Posted by whitney on Sunday, January 2, 2011 at 2:58pm.
If Quadrilateral QRST is a parallelogram, which is not necessarily true?
a. Opposite angles are congruent. b. The diagonals bisect each other.
c. Angles are four right angles. d. Consecutive angles are supplementary.

geometry  Damon, Sunday, January 2, 2011 at 3:04pm
Hold on here  what is a rectangle? How does it differ from any other kind of parallelogram

geometry  Anonymous, Tuesday, January 25, 2011 at 6:46pm
hvhvhv

geometry  Anonymous, Wednesday, October 19, 2016 at 3:48pm
Which statement is true about angles 3 and 5?