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 Interactive Checkpoint
 Rotational Symmetry:  A figure has rotational symmetry if, after rotating it by an angle of 180 degrees or less about its center, the figure lines back up with itself.

Determine if the following figures have rotational symmetry.

 Choose each answer from the menus.

Graded Response
 a)    a)  
 b)    b)  
 c)    c)  
 d)    d)