In a cyclic compound, cumulative diene is not possible.
Case I :One double bond in a ring is conjugated with another double bond outside the ring.
Case II: One double bond in a ring in isolated position with another double bond outside the ring
Case III: Two double bonds in the ring in isolated position.
If the `Me` groups are placed at the double bond, none of them shows geometrical isomerism.
Case IV: Two double bounds in the ring in conjugation it also does not show geometrical isomerism.