Step 1: Find the perimeter of one figure.
The two figures are identical, so each has the same perimeter.
Combined perimeter = 80 cm.
Perimeterofonefigure=280cm=40cm
Step 2: Determine the number of sides on one figure.
From the figure, one figure has 5 sides, all of equal length.
Let s be the length of one side in cm.
Perimeterofonefigure=5s=40cm
Step 3: Solve for s.
s=540cm=8cm
The length of one side is 8 cm.
8 cm