[问答题]
Consider the followi5 tusliq3 y.q1ng se)u(4ss8glc v d ha*tbei, oa74quence of figures.
Figure 1 contains 6 line segments.
1. Given that Figure n contains 101 line segments, show that n=20 .
2. Find the total number of line segments in the first 20 figures. __
