A star
Irregular shapes don't ever have rotational symmetry.
Nothing has 1 order of rotational symmetry because in rotational symmetry 1 is none.
none shapes have 1 rotational symmetry because in rotational symmetry one is none
squares
circle
squarerhombusdiamondrectangle
A circle, square, and a triangle all have rotational symmetry.
No, not all shapes have the same rotational symmetry as their order. The order of rotational symmetry refers to the number of times a shape can be rotated around a central point and still look the same within one full rotation (360 degrees). While some shapes like regular polygons have rotational symmetry that corresponds directly to their number of sides, irregular shapes may have a different order of symmetry, or none at all.
These are also known as asymmetric shapes.
No, the division sign (÷) does not have rotational symmetry. When rotated 180 degrees, it does not look the same as its original position. In contrast, shapes like circles or squares exhibit rotational symmetry, but the division sign does not fit this criterion.
Three dimensional shapes, generally, don't have lines of symmetry, but a circle has an infinite number is symmetry lines. 3D shapes also don't have rotational symmetry either, but a circle has an infinite number of that as well.
Shapes that do not have rotational symmetry are those that cannot be rotated around a central point and appear identical to their original position at any angle less than a full rotation (360 degrees). Common examples include asymmetrical shapes like a scalene triangle, an irregular polygon, or any shape with an uneven distribution of features. These shapes will look different when rotated, indicating the absence of rotational symmetry.