Answer: option 2 is the correct answer.
Explanation:
The marks on each side of the polygon represents equality. It means that all the sides of the polygon are the same. Since the total number of sides that the polygon has is 8, then it is a regular octagon.
The perimeter of a plane shape is the distance around it. The perimeter of the octagon is given as cm, this means that the length of each side would be
48/8 = 6 cm