Question

What is the order of rotational symmetry of a square ​

Answer 1

Answer:

4

Step-by-step explanation:

The square is a highly symmetric object. There are four lines of reflectional symmetry and it has rotational symmetry of order 4 (through 90°, 180° and 270°). Its symmetry group is the dihedral group D4.

Answer 2

Answer:

Order 4

Step-by-step explanation:

The order of rotational symmetry of a square is, how many times a square fits  on to itself during a full rotation of 360 degrees.

Please look at the images of the square in the order A, B, C, D and E. A is the original image. The images B, C, D and E are generated by rotating the original image A.

When we look at the above images of square, it fits on to itself 4 times during a full rotation of 360 degrees.  

Therefore,  

Order of rotational symmetry of a square is 4