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

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

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

  4.   By drawing triangles, you can find that all of the measures of the angles in an octagon add up to 1080°. Find the measure of one angle in a regular octagon.
    A. 1080° B. 1072°
    C. 150° D. 135°

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

The McGraw-Hill Companies