6
The order of rotational symetry can be 0, 2, 3 or 6. The first one gives no degree of rotation. The others are, respectively, 180, 120 and 60 degrees.
19
order of rotation of semicircle is 1. angle of rotation of semicircle is 360 degree. If you want to find angle of rotation of a shape, then divide 360 from order of rotation of a shape.
4
2 if not a square
6.
A hexagon can have rotational symmetry of order 1, 2, 3 or 6.
Six of each.
reflection
60,120,180,240,300
The order of rotational symetry can be 0, 2, 3 or 6. The first one gives no degree of rotation. The others are, respectively, 180, 120 and 60 degrees.
A regular hexagon can be carried onto itself by rotations of 60 degrees, 120 degrees, 180 degrees, 240 degrees, and 300 degrees around its center. These rotations correspond to the multiples of 60 degrees, which are the angles formed by the vertices of the hexagon. Additionally, a 0-degree rotation (no rotation) also carries the hexagon onto itself.
both
yes, it in fact does. both!
Oh, dude, a regular hexagon has six sides, so it has six lines of symmetry. Each line of symmetry represents a different way you can rotate the hexagon and have it look the same. So, the order of rotational symmetry for a regular hexagon is 6. Like, it's symmetry, but make it hexagonal.
19
order of rotation of a semi circle is 1