Cnidarians exhibit radial symmetry. This means that their body parts are arranged around a central axis, similar to the way the segments of a wheel are organized around its hub.
Radial symmetry allows cnidarians to interact with their environment from multiple directions, which is particularly advantageous for organisms like jellyfish, corals, and sea anemones that may not move around much. Instead of having a distinct front and back end, their bodies can be divided into similar halves through any plane that passes through the center, enhancing their ability to sense food and predators from various angles.