A cotyledon is a seed leaf. A dicotyledon is a plant that has two leaves directly after it germinates. If you peel/open a dicotyledon seed, it will naturally fall into two halves which would become...
the characteristica of a dicotyledon plant are the normally have two leaves
Monocotyledons has one cotyledons or seed leaf and parallel veins. Dicotyledons have two cotyledons or seed leaves and net-like or branching veins.
A dicotyledon has leaves with a network of veins, and also, the seed contains an embryo that contains two seed leaves
Any plant that has branches is dicotyledon If it doesn't have any branches then its monocotyledon