Complete the figure shown next, assuming that it has the following rotation symmetries a...

Complete the figure shown next, assuming that it has the following rotation symmetries about the given point. (Hint: Use a protractor and a ruler or compass.)

a. 180° rotation symmetry

b. 90°, 180°, and 270° rotation symmetries

c. 120° and 240° rotation symmetries

d. Which of the completed figures from parts (a) through (c) have reflection symmetry through the dashed horizontal line?