Answer:

 

1)  There are six rotational symmetries.  They are 60۫, 120۫, 180۫, 240۫, 300۫, and 360۫.

 

 2)  The angle of rotation is 60۫.

 

 

 

Teacher Note:

Rotational symmetries refers to the numbers of degrees a figure can be rotated and fit exactly on itself.[1]

 


 

[1] Billstein, R. & Williamson, J. (1999).  MathThematics, Book 2. (page 604). Evanston, IL:  McDougal Littell.