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 to coincide with its original position.

Step2: Analyze the given quadrilateral

For a general quadrilateral, if it is not a special regular polygon - like a square (which has a minimum rotational - symmetry angle of 90°), the minimum angle for it to coincide with itself is 360°. This quadrilateral is not a square or a rectangle or other special quadrilaterals with more rotational symmetries.

Answer:

D. 360°