Using the distance formula, you get sqrt(36+25) which is sqrt(61) which is around 7.8
The answer is 8, I got this question a long time ago so I know if wrong please tell me.
The perimeter formula here is P = 2W + 2L.
In this situation P = 32 ft = 2(3W-4) + 2W, or 32 ft = 6W - 8 + 2W, or
32 ft = 8W - 8.
Solve this for W by adding 8 to both sides of the equation:
40 ft = 8W. Then W = 5 ft, and L = 3(5 ft) - 4 ft = 11 ft.
Note that P = 2(5 ft) + 2(11 ft) comes out to (10 + 22) ft, or 32 ft, as was given.