Question 1031351
{{{(2/2)(4+8)+(1/2)(8+6)+(2/2)(6+10) + (1/2)(10+10)+(2/2)(10+12)+(1/2)(12+16)}}}  (Note that the 4th figure is actually a rectangle with area 10 square units.)

= 12 + 7 + 16 + 10 + 22 + 14 = {{{highlight(81)}}}