Question 19.77

image 47. For the Nigerian Yoruba cloths (c) and (d) in the accompanying illustration, use the flowchart in Spotlight 19.9 (page 797) to identify (by notation) the type of wallpaper pattern.

image

47.

(c) Smallest rotation is 90°, there are reflections, there are reflections in lines that intersect at 45°: .

(d) Smallest rotation is 90°, there are no reflections: .