Ответ:

S10 = (0 + 18)·(10)/2 = 90

S11 = (0 + 20)·(11)/2 = 110

S12 = (0 + 22)·(12)/2 = 132

S13 = (0 + 24)·(13)/2 = 156

S14 = (0 + 26)·(14)/2 = 182

S15 = (0 + 28)·(15)/2 = 210

S16 = (0 + 30)·(16)/2 = 240

S17 = (0 + 32)·(17)/2 = 272

Объяснение: