1.   Choose the best description for the figure.
    A. semicircle B. polygon
    C. regular polygon D. not a polygon

  2.   Which of the following angle measures represents the angles of a regular polygon that can be used to make a tessellation?
    A. 140° B. 120°
    C. 108° D. 150°

  3.   The sum of the angle measures of a regular dodecagon (a 12-sided polygon) is 1800°. What is the measure of each angle of a regular dodecagon?
    A. 144° B. 100°
    C. 140° D. 150°

  4.   In the tessellation below, name the polygons and determine how many of each type are at each vertex.
    A. two triangles and two hexagons
    B. six triangles
    C. none of the other choices; different vertices have different polygons forming them
    D. one hexagon and four triangles

  5.   Which figure will tessellate?
    A. B.
    C. D.

The McGraw-Hill Companies