Period of rotation is the time taken for an object to complete exactly one revolution around another object, like the earth rotating around the sun or the moon rotating around the earth.
Chat with our AI personalities
If you mean "Does it have a rotational symmetry", the answer is "Yes." there is a 180 degree rotational symmetry.
Simply that it is an asymmetric shape.
A trapezium does not have rotational symmetry.
It has 8 rotational symmetry.
It has 8lines of rotational symmetry