Respuesta :

Answer:

13.83

Step-by-step explanation:

AC = 3 - (-2) = 5

CB = 4 - 1 = 3

AC ⊥ CB

AB = √5² + 3² = √34 = 5.83

perimeter: 5 + 3 + 5.83 = 13.83

next question, use the formula d = √(x - x')² + (y - y')²