Question

The order of rotational symmetry of a rhombus is __.

• A. 1
• B. 2
• C. 4
• D. 6

Answer 1

The correct option is B 2

A rhombus is a quadrilateral whose sides are equal and opposite angles are equal.
A rhombus needs to be rotated by ${180}^{\circ }$ for it to look exactly the same, and hence the angle of rotation of a rhombus is ${180}^{\circ }$.
Thus, a rhombus has to be rotated about its centre twice to get exactly the same figure as the original one.
$⟹$ The order of rotational symmetry of a rhombus is 2.