SOLUTION: is a parrallelogram a rectangle-always,never,sometimes?

Algebra ->  Linear-equations -> SOLUTION: is a parrallelogram a rectangle-always,never,sometimes?      Log On


   

Question 77883: is a parrallelogram a rectangle-always,never,sometimes?
Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
Sometimes.
The opposite sides are always the same length in a parallelogram.
If the angles in a parallelogram are 90 degrees as well then it is rectangle.