Answer:
Rectangle
Perimeter: 30 units
Step-by-step explanation:
The easiest way is by sketching the graph, as shown in the picture.
Alternatively, you can use Pythagoras Theorem to find length of each side. However in this case, since there are only horizontal and vertical lines, the length of each side is calculated as
6-(-4) = 10
11-6 = 5
Perimeter= 10+10+5+5 = 30 units