Answer:
68 cm
Explanation:
Before the piece of paper was folded, the shape was of a rectangle.
This rectangle has width of 3 cm on the ends.
To find the length of the paper (measure the length of single line/edge):
Length: 5 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 5 = 31 cm
Perimeter of rectangle:
⇒ 2(Length + Width)
⇒ 2(31 + 3)
⇒ 2(34)
⇒ 68 cm
