1.   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°
    Hint

  2.   Which of the following angle measures represent the angles of a regular polygon that can be used to make a tessellation?
    A. 135° B. 144°
    C. 150° D. 90°
    Hint

  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. 2 D. 3
    Hint

  4.   In the tessellation shown below, name the polygons and determine how many of each type are at each vertex.
   
    A. 2 octagons and 1 square B. 1 octagon and 4 squares
    C. 1 octagon and 2 squares D. 4 octagons and 1 square
    Hint

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



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