Asymmetrical
8
metallic
If you mean ABACABA, then it is called symmetrical rondo.
Possibly mono-symmetrical
No. Socks are not symmetrical.
is a arrow symmetrical
porifera & echinodermata
Yes, it is symmetrical
No but an isosceles trapezoid is symmetrical.
No the white house is not symmetrical
Pentagons can be symmetrical, but are not always so.
3 and 8 are symmetrical numbers!