Allfigures referred to in 61.1-61.5 are assumed to be extended to fill the plane
Chapter 61, Problem 61.1(choose chapter or problem)
Allfigures referred to in 61.1-61.5 are assumed to be extended to fill the plane. Detennine the symmetry group of each of the designs in Figure 60.9. (Use Figure 61.4.)
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