The six pattern blocks shown below are manipulatives that can be used to explore
a. Which shapes are
(i) quadrilaterals
(ii) parallelograms
(iii) rhombuses
(iv) regular polygons?
b. The interior angles of pattern blocks can be determined by creating designs such as those shown below. Explain how to use these designs to determine the measures of the interior angles of each pattern block.
c. Create pattern-block designs that have various line symmetries and turn symmetries and discuss the symmetries in your group.
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