Answer:
First, lets look at the side that is already labeled: 5 ft. There are two 5 ft. sides, so the total perimeter so far is 10. I actually compared the 5 ft. side to the side labeled x, and it appears that x = 10. The reason for this is that if you compare both sides, the x side is the same amount as two 5 ft. sides. To calculate the total perimeter, we need to add up the sides: 10 + 10 + 5 + 5 = 30 ft.
hope this helps.
