Question

what is the rotational symmetry

Answer 1

Rotational symmetry, also known as radial symmetry in biology, is the property a shape has when it looks the same after some rotation by a partial turn. An object's degree of rotational symmetry is the number of distinct orientations in which it looks the same.

Answer 2

Answer:

If after a rotation an object looks exactly the same, we say that it has a rotational symmetry. In a complete turn, the number of times an object looks exactly the same is called the order of rotational symmetry. A half turn means rotation by 180°; a quarter turn means rotation by 90