To find the missing width/length for the perimeter of a rectangle:
You multiply the found length/width, in this case, the length, by 2. Since there are 2 of the same sides of a rectangle. 6*2 = 12 Now, you have to subtract the perimeter, 26, from the product. 36 - 12 = 24. You have to divide the difference by 2 because 24 is the 2 missing sides put together. 24/2 = 12 So, the missing width is 12 feet.
The answer would be 20 I know this because if the entire rectangle is 26 and the length is 6 then subtract 26 and 6and your answer is 20. I hope this was helpful!!!
