<h2>
Answer:</h2>
The perimeter of the figure is:
17.9 units
<h2>
Step-by-step explanation:</h2>
We know that the perimeter of the figure is the sum of all the side lengths of a figure i.e. it is the sum of the distance around a figure.
In the given figure the perimeter of the figure is:
Length AB+Length BC+Length CD+Length AD
Now from the figure we see that:
A is located at (-3,5)
B is at (1,7)
C is located at (3,3)
and D at (-1,1)
Hence, by using distance formula we get:



and

Hence, we get perimeter of figure is:

Hence, to the nearest tenth we have:
Perimeter=17.9 units