Science, Maths & Technology
Surfaces
...write down the boundary number β. [Figure 24] Figure 24 Answer (a) β = 1; (b) β = 4; (c) β = 1 To find the boundary numbers of paper surfaces, it is convenient to use coloured pens to trace around the boundary. Doing this, we find that the two boundary numbers of the surfaces in Figure 22 are β = 4 and β = 3, as shown in Figure 25. [Figure 25] Figure 25 Problem 8...