False. Bisecting diagonals is sufficient to guarantee a parallelogram, but the diagonals will only be perpendicular if the sides of the parallelogram are equal.
A parallelogram
It is a rhombus.
false
False
false
no
Not necessarily. But a parallelogram with perpendicular diagonals must always be one.
None because any 4 sided quadrilateral including a parallelogram has only 2 diagonals
False. It could be a rhombus.
Parallelogram and rectangle apex
A parallelogram.