Hi, please help me with this...(Crying)

It's supposed to be a parallelogram.

O (0;0)

P (6;8)

Q (9;14)

Vector OP and OQ are parallelogram sides.

I need this parallelogram diagonals and their edge-top coordinates.

And if possible, then drawing too!

It's very easy, all you need is one edge-top to find!

First diag : OP + OQ =

Sec. diag : OP - OQ =

Thanks!!