[问答题]
Consider the following sequence ofuhc4ayx k 1+wcu*bfe,p )tm 1xp:,hd( figu)2az7-2g qs .ntw etfjres.
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. __
