Question

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

Explanation:

Step1: Recall rotational - 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 and still look the same.

Step2: Analyze the quadrilateral

For a general quadrilateral, if it is not a special regular - like quadrilateral (square, rectangle etc.), we consider its properties. A non - special quadrilateral needs to be rotated 360° to look exactly the same as the original.

Answer:

360°