Answer:
10.3m
Step-by-step explanation:
The perimeter is the sum of all the side lengths.
To find the missing length you can write this equation and solve for x:
(1) 26 + 11.3 + 11.3 + 11.3 + 11.3 +11 +11.3 + 11.3 + 11.3 + 11.3 +26 + x = 163.7
(2) 153.4 +x = 163.7
(3) x = 10.3
Therefore, the missing length is 10.3m.
