Jawabanmu

2014-06-03T16:47:37+07:00
2014-06-03T16:47:39+07:00
A. k = 2 (l + p)
    46 = 2 (10 +p)
   23 = 10 + p
   13 = p
b. L = p × l
      = 13 × 10
      =130