Answer :
Final answer:
Rotational symmetries involve angles of 360 degrees that map an image onto itself.The option (d) is correct.
Explanation:
Angles that map an image onto itself are known as rotational symmetries. The answer to the question 'How many angles will map an image onto itself?' is 360 degrees, as a full rotation is required for the image to coincide with its original position.If a shape has order 4 rotational symmetry, it means that when you rotate the shape all the way around till it lands back onto its original position, there's 4 times in which the shape looks the same.
Rotational symmetry is the number of times a shape can “fit into itself” when it is rotated 360 360 degrees about its centre. E.g. A rectangle has a rotational symmetry of order 2 shown below where one vertex is highlighted with a circle and the centre of the shape is indicated with an. 'x'.Angle of Rotation: The angle of rotation for a figure with rotational symmetry is the smallest angle the figure can be turned to make it look the same as it originally did. This angle is given by θ = 360 ∘ n , where is the order of the rotation.
Types of symmetries are rotational symmetry, reflection symmetry, translation symmetry, and glide reflection symmetry. These four types of symmetries are examples of different types of symmetry on a flat surface called planar symmetry.
