1.   What is the name of a polygon that has five sides?
    A. nonagon B. heptagon
    C. pentagon D. decagon

  2.   The sum of the measures of the angles of a regular octagon is 1,080. Find the measure of one of its angles.
    A. 108° B. 135°
    C. 90° D. 120°

  3.   In a tessellations with squares and regular triangles, two squares touch each vertex. How many triangles touch each vertex?
    A. 1 B. 4
    C. 3 D. 2

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

  5.   Which of the following angle measures represents the angles of a regular polygon that can be used to make a tessellation?
    A. 144° B. 108°
    C. 140° D. 60°

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