All cnidarians have radial symmetrical. There aretwo major body forms among the Cnidaria - the polyp and the medusa. Sea anemones and coralshave the polyp form, while jellyfish are typical medusae. When you look at them, you can see that these body forms are the same except that one is upside down.
Some members of this phylum are jellyfish, sea anemones, and corals. Cnidarians have two different body plans. Both body plans have radial symmetry. A polyp, such as a hydra, sea anemone, or coral, is shaped something like a vase