They both have rotational symmetry - of order 2. But whereas a rectangle has 2 axes of symmetry, a parallelogram has none.
It has 1 line of symmetry
A parallelogram has two lines of symmetry. These lines are the diagonals of the parallelogram, which bisect each other. Additionally, while a rectangle (a special type of parallelogram) has four lines of symmetry, a general parallelogram only maintains symmetry through its diagonal intersections.
It has 1 line of symmetry or 'mirror image'
A Parallelogram has no bilateral symmetry
It depends what type of parallelogram it is.
There are infinitely many axes of symmetry in mathematics.
a rectangle has 2 axes of symmetry
A square has 4 axes of symmetry.
It has 5 axes of symmetry
They both have rotational symmetry - of order 2. But whereas a rectangle has 2 axes of symmetry, a parallelogram has none.
A parallelogram has a rotational symmetry of 2!
A regular pentagon has five axes of symmetry.
An isosceles triangle definitely has three axes of symmetry
A general parallelogram has rotational symmetry of order two.
Not sure about a duodecagon, but a regular dodecagon has 12 axes of symmetry.
A polygon need not have any axes of symmetry. It can have at most n axes where n is the number of sides that the polygon has.