SOLUTION: 1a. Consider the following sequence of figures. Figure 1 contains 5 line segments. Figure 2 contains 9 and figure three contains 13. Given that figure n contains 801 line seg

Figure       segments
  1              5
  2              9
  3             14
  .              .
  .              .
  .              .
  n            801


Arithmetic sequence with first term a1 = 5, 
common difference d = 4, given an = 801,















Edwin