Answer:
The length is 5.7
Step-by-step explanation:
Step 1: Make an equation to represent the problem
2(7.9) + 2(L) = 27.2
Step 2: Solve for L/Length
2(7.9) + 2(L) = 27.2
15.8 + 2L - 15.8 = 27.2 - 15.8
2L / 2 = 11.4 / 2
L = 5.7
Answer: The length is 5.7