Question

what is the minimum angle of rotational symmetry for the quadrilateral shown below? 60° 90° 180° 360°

Explanation:

Step1: Recall rotation - symmetry concept

The minimum angle of rotational symmetry of a shape is the smallest non - zero angle by which the shape can be rotated about a fixed point to coincide with its original position.

Step2: Analyze the given quadrilateral

For a general quadrilateral (not a special one like a square, rectangle etc. with higher symmetry), the minimum angle for which it will map onto itself is 360°. A 60° or 90° or 180° rotation will not make a non - symmetric quadrilateral coincide with its original form in most cases.

Answer:

360°