1.   Suppose that, in a tessellation by regular hexagons and equilateral triangles, two hexagons meet at a vertex. How many of the triangles must meet at that vertex?
    A. 4 B. 2
    C. 3 D. 1
    Hint

  2.   When a figure is in its original position after being rotated 180°, it is said to have ______?______.
    A. rotational symmetry B. axis of symmetry
    C. regular rotation D. uniform rotation
    Hint

  3.   A pattern in which identical copies of a figure fill a plane so there are no gaps or overlaps is called a ______?_________.
    A. transformation B. reflection
    C. rotation D. tessellation
    Hint

  4.   Which figure could not make a tessellation?
    A. B.
    C. D.
    Hint

  5.   Which is the image of the figure shown when it is tuned 180° clockwise about the center point P?
   
    A. B.
    C. D.
    Hint



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