Hello!
The perimeter is when you add all the sides
We have to find all the sides
The lines opposite of each other are equal
JA = JB = 13
LC = AL = 19
BK = CK = 7
Now we add all the values
19 + 19 + 13 + 13 + 7 + 7 = 78
The answer is 78
Hope this helps!