The singular form of the plural noun symmetries is symmetry.
Fearful Symmetries - novel - was created in 1999.
yes, in fact it can have 6 rotational symmetries.
Fearful Symmetries - 2016 was released on: USA: 2016
Yes, a regular n-gon has n reflectional symmetries and n rotational symmetries. The n reflectional symmetries correspond to the lines of symmetry that can be drawn through each vertex and the midpoint of the opposite side. The n rotational symmetries arise from the ability to rotate the n-gon by multiples of ( \frac{360^\circ}{n} ), returning it to an equivalent position. Thus, both types of symmetry are equal to n.
Parallelograms: 2-fold Square: 4-fold n-fold symmetries refer to rotational symmetries. Consequently, any symmetries about axes that these and other quadrilaterals may have are not relevant to this question.
Yes
It has 20
60,120,180,240,300
no rotational symmetry
A brand new CAR
A tetrahedron need not have any symmetry.
a nonagon.