Tapeworm belongs to Phylum/ of ?

Tapeworms belong to the Phylum Platyhelminthes.

Here is a detailed explanation:

Platyhelminthes is a phylum of invertebrate animals that includes flatworms.
Tapeworms are a type of parasitic flatworm, which are characterized by their flat, ribbon-like bodies.
The scientific name for the class to which tapeworms belong is Cestoda, which is part of the Phylum Platyhelminthes.
Tapeworms are known for their parasitic lifestyle, typically living in the intestines of vertebrates, including humans.
In summary, tapeworms are members of the Phylum Platyhelminthes, and more specifically, the class Cestoda within that phylum.