Yes, because if you take a clover and fold it it will fold evenly like paper.
Yes, a parallelogram has a line of symmetry through its center. This means that if you fold the parallelogram along this line, the two halves will match exactly.
A regular pentagon or a 5-pointed star have rotational symmetry of order 5.
Yes. A circle has infinitely many lines of symmetry and it also has rotational symmetry of infinite order.
A line has two fold rotational symetry.
two-fold
line
It has rotational symmetry of order 2.
A line has rotational symmetry of order 2.
Are you referring to the Marquise Cut in Diamond jewelry? This is in the shape of a pointed oval; it would two-fold rotational symmetry.
A two-fold symmetry has a 360 degrees rotation. A three-fold rotational symmetry, on the other hand, has 120 degrees, and on a horizontal axis, a symmetry has 180 degrees.
This is a little bit like asking why a square has four sides. A regular pentagon is defined in such a way as to require that it has 5-fold rotational symmetry.
Yes, because if you take a clover and fold it it will fold evenly like paper.
A regular pentagon or a 5-pointed star have rotational symmetry of order 5.
Yes, a parallelogram has a line of symmetry through its center. This means that if you fold the parallelogram along this line, the two halves will match exactly.
A general parallelogram has rotational symmetry of order two.
Yes. An ellipse (oval) has two lines of symmetry, but not a rotational symmetry. A parabola has one line and no rotation.