yes
Polyps are radially symmetrical.
the Aboral
bilaterally symmetrical or radially symmetrical
I belive 1%
nope. Some bivalves have bilateral symmetry but no radial symmetry.
Brain corals are hemispherical or spherical in shape resembling a brain. They must me radially symmetrical organism.
Cnidaria have two basic body forms: swimming Medusae and sessile Polyps, and they are both radially symmetrical.
Anenome.
Yes, cnidaria is radially symmetrical. Like jelly fishes, they have a wheel and tube structure, which is radially symmetrical.
porifera & echinodermata
No, They are bilaterally symmetrical. Radially symmetrical animals include echinoderms (starfish, sea stars, sea urchins) and many plants.