me DONT beleev that
rombus=squarshed square...all 4 sides the same length
but angel dont hafta be 90 deg
If yu draw serkel with the base as the diameter. yu get a definite half-serkel
that go weerever it go.
Then, chaenj rombus shape bi vary the first angel. Rombus go all over the plaes.
& its diagonals chaenj. & weer the diagonals meet also chaenj.
But the serkel stae the same.