It is 36k degrees where k is an integer.
It would require 36 degrees.
At every 9 degree turn it will look the same then after 40 turns it will map back on itself.
The smallest possible value above 0 degrees.
Rotation
No.
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.
It would require 36 degrees.
A regular decagon can rotate onto itself at angles that are multiples of ( \frac{360^\circ}{10} ), which is ( 36^\circ ). This means it can rotate by ( 0^\circ ), ( 36^\circ ), ( 72^\circ ), ( 108^\circ ), ( 144^\circ ), ( 180^\circ ), ( 216^\circ ), ( 252^\circ ), ( 288^\circ ), and ( 324^\circ ). In total, there are 10 distinct angles (including ( 0^\circ )) at which the decagon can map onto itself.
A decagon has 10 sides, and its order of rotational symmetry is equal to the number of times it can be rotated to map onto itself. A regular decagon has rotational symmetry of order 10, meaning it can be rotated 36 degrees, 72 degrees, 108 degrees, and so on, up to 360 degrees, to coincide with its original position. Each rotation creates a position that is indistinguishable from the original, resulting in 10 unique rotational positions.
At every 9 degree turn it will look the same then after 40 turns it will map back on itself.
360/6 = 60 degrees.
Order 5. The shape will fit over itself exactly 5 times during a complete rotation.
The smallest possible value above 0 degrees.
No. No shape with 7 or more sides will tessellate with multiple copies of itself. All traigles and quadrilaterals will tessellate, there are 14 irregular pentagons (the last was discovered in 2016), and a number of hexagons - including the regular hexagon.
Yes, but only in the form of some irregular concave decagons.
A regular pentagon has rotational symmetry but does not have rational symmetry. Rational symmetry refers to the property of a shape that can be divided into equal parts by rotations that are fractions of a full rotation (e.g., 1/2, 1/3). Since a regular pentagon can only be rotated by 72 degrees (1/5 of a full rotation) to map onto itself, it does not exhibit rational symmetry.
The rotation of the earth around the sun and the angle of the rotation of the earth itself.