1. In the set of pattern blocks, assume that all you know is that a square has four congruent right angles whose measures are 90⁰. Describe how you can determine the following measures. Note: Pictures are a big help. (You can draw or copy & paste.)

a. a straight angle b. angle of the equilateral triangle

c. each angle on the yellow hexagon d. each angle of the beige ("skinny") rhombus