Answer:
18 + √26
Step-by-step explanation:
You will have to use distance formula [tex]d = \sqrt{(x2-x1)^{2} + (y2-y1)^{2}}[/tex] between all 4 points to solve this. Once you have found the lengths between the points, you can add them all together. When you add them all together you should get 18 + √26 as your answer.
