Question

Write
order
of
rotation
and
angle
of


rotation
of
:



(i) Equilateral
triangle


(ii) Circle


(iii) Regular
hexa​

Answer 1

Answer:

i) When we look at the above images of equilateral triangle, it fits on to itself 3 times during a full rotation of 360 degrees. Hence, an equilateral triangle has rotational symmetry of order 3.

ii)

The order of rotational symmetry of a circle is, how many times a circle fits on to itself during a full rotation of 360 degrees. A circle has an infinite 'order of rotational symmetry'. In simplistic terms, a circle will always fit into its original outline, regardless of how many times it is rotated.

iii) The order of symmetry is the number of times the figure coincides with itself as its rotates through 360° . Example: A regular hexagon has rotational symmetry. The angle of rotation is 60° and the order of the rotational symmetry is 6 .

Step-by-step explanation:

I hope you understand