2. Let Z be the surface given by the word abc dbdfgf. a) Is Z orientable? Justify your answer. b) Draw a polygonal decomposiuon of Z. c) How many boundary circles does Z have? d) Compute the Euler characteristic of Z. e) Describe Z as a standard surface. 2. Let Z be the surface given by the word abc dbdfgf. a) Is Z orientable? Justify your answer. b) Draw a polygonal decomposiuon of Z. c) How many boundary circles does Z have? d) Compute the Euler characteristic of Z. e) Describe Z as a standard surface