Question

which angle of rotation is an angle of rotational symmetry for all figures? 45° 90° 180° 360°

Explanation:

Step1: Recall rotational symmetry concept

Rotational symmetry is when a figure looks the same after a rotation. A full - rotation is 360°.

Step2: Analyze each option

45°, 90°, 180° are angles of rotational symmetry for some figures but not all. A 360° rotation will always map a figure onto itself.

Answer:

D. 360°