What is the order of rotational symmetry of decagon?

Answer 1

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.

Answer 2

Order ten (only in regular ones) otherwise it depends on the number of equal sides the number of equal sides is the order of symmetry (i.e. 2 equal sides is order 2, 6 is order 6 etc.