Based on my calculations, a is our answer becuase 4 sides is in both rhombus and rectangle because b is incorrect because rhombuses do not haVE 4 right angles, in fact they have none. c is also incorrect becase our lines are not proven to be perfectly equal. d is incorrect because a rhombus has uneven lines. anyways a i believe is ur answer! hope this helps
Rectangles and rhombuses are quadrilateral, and they have opposite sides that are parallel and congruent. Opposite angles in rectangles and rhombuses are also equal, since the opposite sides are parallel.
