Answer
38 ft
Work Step by Step
To find how much fencing is needed to surround the walkway, calculate the perimeter of the walkway.
Since 2 feet are added to each side of the garden to create the walkway, add 4 to the dimensions of the garden to find the dimensions of the walkway.
base(b)$=5+4=9$
height(h)$=6+4=10$
Use the formula for perimeter and substitute.
$P=2b+2h=2(9)+2(10)=18+20=38$
