Answer:
176 units
Step-by-step explanation:
All sides of this octagon are of the same length. Thus, x + 7 = (4/3)x - 1/3.
Mult. all terms by 3 will remove the fractions: 3x + 21 = 4x - 1.
Then 22 = x. The perimeter of this figure is 8(22), or 176 units.
